''Calamagrostis'' (reed grass or smallweed) is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

s in the grass

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns an ...

, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' generally occur at higher elevations. These tufted perennials usually have hairless narrow

leaves A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", wh ...

. The

ligule A ligule (from "strap", variant of ''lingula'', from ''lingua'' "tongue") is a thin outgrowth at the junction of leaf and leafstalk of many grasses (Poaceae) and sedges. A ligule is also a strap-shaped extension of the corolla, such as that of a ...

s are usually blunt. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

forms a

panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...

. Some may be reed-like. The plants may be rhizomatous (underground stems with shoots), stoloniferous (with runners), or caespitose (growing in tufts or clumps). The bisexual spikelets have a single floret and generally they are purple or purple-brown. The spikelets are clustered into inflorescences, which usually develop in early- to mid-summer on long culms ( = stems). Many species of ''Calamagrostis'' are morphologically similar, but they generally occur in distinct habitats, and they have unique geographical distributions. Given the subtle distinctions between many closely related taxa, there are several species complexes that could benefit from additional systematic study. Even the generic boundaries of the genus are controversial. For example, species in the genus ''

Deyeuxia ''Deyeuxia'' is a genus of plants allied to the Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the gras ...

'', distributed largely in the southern hemisphere are morphologically very similar to species of ''Calamagrostis''. It may be appropriate to recognize all of these species in a single genus, but this will require detailed scientific study of DNA of species from around the world. Some ''Calamagrostis'' can be very decorative, and are widely cultivated largely in northern

temperate In geography, the temperate climates of Earth occur in the middle latitudes (23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ranges throughout t ...

zones. The species ''Calamagrostis brachytricha'' and the cultivar ''Calamagrostis'' × ''acutiflora'' 'Karl Foerster' are recipients of the

Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nort ...

Award of Garden Merit The Award of Garden Merit (AGM) is a long-established annual award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. History The Award of Garden Merit ...

. The word "Calamagrostis" is derived from the Greek word ''kalamos'' (reed) and ''agrostis'' (a kind of grass).

Species

''Calamagrostis'' contains the following recognised species: *''

Calamagrostis abnormis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' (Hook.f.) U.Shukla *''

Calamagrostis acuminata ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' (Vickery) Govaerts * ''Calamagrostis'' × ''acutiflora'' (Schrad.) DC. *''

Calamagrostis affinis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' (M.Gray) Govaerts *''

Calamagrostis ajanensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' Kharkev. & Prob. *''

Calamagrostis alajica ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' Litv. *''

Calamagrostis alba ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' (J.Presl) Steud. *''

Calamagrostis albiflora ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' Vaniot *''

Calamagrostis altaica ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Tzvelev *'' Calamagrostis amoena'' (Pilg.) Pilg. *''

Calamagrostis ampliflora ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Tovar * ''Calamagrostis'' × ''andrejewii'' Litv. *''

Calamagrostis angustifolia ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Kom. *'' Calamagrostis anthoxanthoides'' (Munro) Regel *'' Calamagrostis appressa'' (Vickery) Govaerts *''

Calamagrostis archboldii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hitchc. *'' Calamagrostis arundinacea'' (L.) Roth *''

Calamagrostis atjehensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Ohwi *''

Calamagrostis aurea ''Calamagrostis aurea'' is a species of grass in the family Poaceae. It is found only in Ecuador. References aurea Aurea, golden in Latin, may refer to: * Aurea (car), a former Italian automobile manufactured in Turin from 1921 to 1930 * A ...

'' (Munro) Hack. ''ex'' Sodiro *'' Calamagrostis australis'' (Moritzi) Buse *''

Calamagrostis austrodensa ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Govaerts *''

Calamagrostis austroscaberula ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Govaerts *''

Calamagrostis autumnalis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Koidz. *''

Calamagrostis avenoides ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' (Hook.f.) Cockayne * ''Calamagrostis'' × ''badzhalensis'' Prob. *''

Calamagrostis baicalensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Litv.) Steph. ''ex'' Komarov *'' Calamagrostis balkharica'' P.A.Smirn. *''

Calamagrostis benthamiana ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts * ''Calamagrostis'' × ''bihariensis'' Simonk. *'' Calamagrostis bogotensis'' (Pilg.) Pilg. *'' Calamagrostis bolanderi'' Thurb. *'' Calamagrostis boliviensis'' Hack. *'' Calamagrostis borii'' Tzvelev *''

Calamagrostis boyacensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Swallen & Garc.-Barr. *'' Calamagrostis brachyathera'' (Stapf) Govaerts *'' Calamagrostis brassii'' Hitchc. *'' Calamagrostis breviaristata'' (Wedd.) Pilg. *'' Calamagrostis brevifolia'' (J.Presl) Steud. *''

Calamagrostis breweri ''Calamagrostis breweri'' is a species of grass known by the common name shorthair reedgrass. Distribution It is native to the mountains of northern California and Oregon, where it grows in forests and meadows in subalpine and alpine climates. ...

'' Thurb. *''

Calamagrostis cabrerae ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Parodi *''

Calamagrostis cainii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hitchc. *'' Calamagrostis calderillensis'' Pilg. *''

Calamagrostis canadensis ''Calamagrostis canadensis'' is a species of grass, having three or more varieties, in the family Poaceae. It is known variously by the common names of bluejoint, bluejoint reedgrass, marsh reedgrass, Canadian reedgrass, meadow pinegrass, and m ...

'' (Michx.) P.Beauv. *''

Calamagrostis canescens ''Calamagrostis canescens'', known as purple small-reed, is a species of grass in the family Poaceae, native to Europe and western Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive ge ...

'' (Weber) Roth *''

Calamagrostis carchiensis ''Calamagrostis carchiensis'' is a species of grass in the family Poaceae. It is found only in Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuado ...

'' Laegaard *''

Calamagrostis carinata ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts *''

Calamagrostis caucasica ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' Trin. *''

Calamagrostis cephalantha ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Pilg. *'' Calamagrostis chalybaea'' (Laest.) Fr. *''

Calamagrostis chaseae ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Luces *''

Calamagrostis chilensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Phil. *''

Calamagrostis chrysantha ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (J.Presl) Steud. *'' Calamagrostis chrysophylla'' (Phil.) Govaerts *'' Calamagrostis cleefii'' Escalona *''

Calamagrostis clipeata ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Vaniot *'' Calamagrostis coahuilensis'' P.M.Peterson, Soreng & Valde´s-Reyna *''

Calamagrostis coarctata ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Eaton *''

Calamagrostis conferta ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Keng) P.C.Kuo & S.L.Lu * ''Calamagrostis'' × ''conwentzii'' Ulbr. *''

Calamagrostis cordechii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Govaerts *''

Calamagrostis crassiuscula ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts *'' Calamagrostis crispa'' (Rugolo & Villav.) Govaerts *'' Calamagrostis cryptolopha'' (Wedd.) Hitchc. *'' Calamagrostis curta'' (Wedd.) Hitchc. *''

Calamagrostis curtoides ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Rugolo & Villav.) Govaerts *''

Calamagrostis curvula ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Wedd.) Pilg. *''

Calamagrostis cuzcoensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Tovar * ''Calamagrostis'' × ''czerepanovii'' Husseinov *''

Calamagrostis debilis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hook.f. *''

Calamagrostis decipiens ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (R.Br.) Govaerts *''

Calamagrostis decora ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' Hook.f. *''

Calamagrostis densiflora ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (J.Presl) Steud. *'' Calamagrostis deschampsiiformis'' C.E.Hubb. *''

Calamagrostis deschampsioides ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Trin. *'' Calamagrostis deserticola'' (Phil.) Phil. *''

Calamagrostis diemii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Rúgolo) Soreng *''

Calamagrostis diffusa ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Keng) Keng f. *''

Calamagrostis distantifolia ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Luchnik *'' Calamagrostis divaricata'' P.M.Peterson & Soreng *'' Calamagrostis divergens'' Swallen *'' Calamagrostis dmitrievae'' Tzvelev *''

Calamagrostis drummondii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Steud.) Govaerts *''

Calamagrostis ecuadoriensis ''Calamagrostis ecuadoriensis'' is a species of grass in the family Poaceae. It is found only in Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecua ...

'' Laegaard *''

Calamagrostis effusa ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' (Kunth) Steud. *''

Calamagrostis effusiflora ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Rendle) P.C.Kuo & S.L.Lu ''ex'' J.L.Yang *''

Calamagrostis elatior ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Griseb.) A.Camus *''

Calamagrostis eminens ''Calamagrostis eminens'' is a grass species in the genus ''Calamagrostis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of t ...

'' (J.Presl) Steud. *''

Calamagrostis emodensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Griseb. *'' Calamagrostis epigejos'' (L.) Roth *''

Calamagrostis erectifolia ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hitchc. *''

Calamagrostis eriantha ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Kunth) Steud. *''

Calamagrostis expansa ''Calamagrostis expansa'' is a species of grass in the family Poaceae known by the common name Maui reedgrass. It is native to Hawaii, where it is known only from Maui and the island of Hawaii. Its natural habitats are lowland moist forests and ...

'' (Munro ''ex'' Hillebr.) Hitchc. *''

Calamagrostis fauriei ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hack. *'' Calamagrostis fibrovaginata'' Laegaard *''

Calamagrostis fiebrigii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Pilg. *'' Calamagrostis filifolia'' Merr. *'' Calamagrostis filipes'' (Keng) P.C.Kuo & S.L.Lu ''ex'' J.L.Yang *''

Calamagrostis flaccida ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' Keng f. *''

Calamagrostis foliosa ''Calamagrostis foliosa'' is a species of grass known by the common name leafy reedgrass. It is endemic to northern California, where it grows in the forests and scrub on the coastline. Description ''Calamagrostis foliosa'' is perennial bunchgr ...

'' Kearney *'' Calamagrostis frigida'' (Benth.) Maiden & Betche *''

Calamagrostis fulgida ''Calamagrostis fulgida'' is a species of grass in the family Poaceae. It is found only in Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, ...

'' Laegaard *'' Calamagrostis fulva'' (Griseb.) Kuntze *'' Calamagrostis fuscata'' (J.Presl) Steud. *''

Calamagrostis gayana ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Steud.) Soreng *''

Calamagrostis gigas ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Takeda *''

Calamagrostis glacialis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Wedd.) Hitchc. *''

Calamagrostis griffithii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' (Bor) G.Singh *'' Calamagrostis guamanensis'' Escalona *''

Calamagrostis guatemalensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hitchc. *''

Calamagrostis gunniana ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Nees) Reeder *''

Calamagrostis hackelii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Lillo ''ex'' Stuck. *''

Calamagrostis hakonensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' Franch. & Sav. * ''Calamagrostis'' × ''hartmaniana'' Fr. * ''Calamagrostis'' × ''haussknechtiana'' Torges *''

Calamagrostis hedbergii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Melderis *''

Calamagrostis henryi ''Calamagrostis arundinacea'' is a species of bunch grass in the family Poaceae, native to Eurasia, China and India. Under its synonym ''Calamagrostis brachytricha'' it has gained the Royal Horticultural Society's Award of Garden Merit. Descrip ...

'' (Rendle) P.C.Kuo & S.L.Lu ''ex'' J.L.Yang *''

Calamagrostis heterophylla ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' (Wedd.) Pilg. *''

Calamagrostis hieronymi ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hack. *''

Calamagrostis hillebrandii ''Calamagrostis hillebrandii'' is a species of grass in the family Poaceae known commonly as Hillebrand's reedgrass. It is endemic to Maui in Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in t ...

'' (Munro ''ex'' Hillebr.) C.L.Hitchc. *''

Calamagrostis hirta ''Calamagrostis hirta'' is a species of grass in the family Poaceae. It is a bunchgrass that is endemic to Ecuador. It is an IUCN Red List Vulnerable species. References hirta Hirta ( gd, Hiort) is the largest island in the St Kilda ar ...

'' (Sodiro ''ex'' Mille) Laegaard *'' Calamagrostis holciformis'' Jaub. & Spach *''

Calamagrostis holmii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Lange *''

Calamagrostis howellii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Vasey *'' Calamagrostis hupehensis'' (Rendle) Chase *'' Calamagrostis imbricata'' (Vickery) Govaerts *''

Calamagrostis inaequalis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts *''

Calamagrostis inexpansa ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' A.Gray *''

Calamagrostis insperata ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Swallen *''

Calamagrostis intermedia ''Calamagrostis intermedia'' is a species of grass in the family Poaceae. It is native to South America, growing in high elevation grasslands and forest clearings. Its range extends from Colombia to Argentina. Description ''Calamagrostis interm ...

'' (J.Presl) Steud. *''

Calamagrostis involuta ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Swallen *''

Calamagrostis jamesonii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Steud. *'' Calamagrostis kalarica'' Tzvelev *''

Calamagrostis kengii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' T.F.Wang *''

Calamagrostis killipii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Swallen *''

Calamagrostis koelerioides ''Calamagrostis koelerioides'', the fire reedgrass, is a species of grass in the family Poaceae native to western North America. It ranges from western Wyoming to Washington state, south to Mexico. It is found in many habitat types. Fire reedgra ...

'' Vasey *'' Calamagrostis kokonorica'' Keng ''ex'' Tzvelev *'' Calamagrostis korotkyi'' Litv. *''

Calamagrostis korshinskyi ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Litv. * ''Calamagrostis'' × ''kotulae'' Zapal. * ''Calamagrostis'' × ''kuznetzovii'' Tzvelev *''

Calamagrostis lahulensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' G.Singh *''

Calamagrostis lapponica ''Calamagrostis lapponica'', the Lappland reedgrass, is a grass species native to colder parts of the Northern Hemisphere. It has been reported from Scandinavia, Russia, Greenland, Alaska, and every Canadian province and territory except the Mari ...

'' (Wahlenb.) Hartm. *''

Calamagrostis lawrencei ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts *''

Calamagrostis leiophylla ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Wedd.) Hitchc. *''

Calamagrostis leonardii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Chase *'' Calamagrostis levipes'' (Keng) P.C.Kuo & S.L.Lu ''ex'' J.L.Yang *''

Calamagrostis licentiana ''Calamagrostis arundinacea'' is a species of bunch grass in the family Poaceae, native to Eurasia, China and India. Under its synonym ''Calamagrostis brachytricha'' it has gained the Royal Horticultural Society's Award of Garden Merit. Descript ...

'' Hand.-Mazz. *''

Calamagrostis ligulata ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Kunth) Hitchc. *'' Calamagrostis linifolia'' Govaerts *''

Calamagrostis llanganatensis ''Calamagrostis llanganatensis'' is a species of grass in the family Poaceae. It is found only in Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecu ...

'' Laegaard *'' Calamagrostis longiseta'' Hack. *''

Calamagrostis macbridei ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Tovar *''

Calamagrostis macilenta ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Griseb.) Litv. *'' Calamagrostis macrophylla'' (Pilg.) Pilg. *''

Calamagrostis malamalensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hack. ''ex'' Stuck. *'' Calamagrostis mandoniana'' (Wedd.) Pilg. *''

Calamagrostis matsumurae ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Maxim. *''

Calamagrostis mckiei ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts *''

Calamagrostis menhoferi ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Govaerts *''

Calamagrostis mesathera ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts *''

Calamagrostis microseta ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts *''

Calamagrostis minarovii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hüseyin *'' Calamagrostis minima'' (Pilg.) Tovar *''

Calamagrostis minor ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Benth.) J.M.Black *''

Calamagrostis mollis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' Pilg. *''

Calamagrostis montanensis ''Calamagrostis montanensis'' is a species of grass known by the common names plains reedgrass and prairie reedgrass. It is native to North America, where it is found across Canada from British Columbia to Manitoba and south to Colorado in the Un ...

'' (Scribn.) Scribn. ''ex'' Vasey *''

Calamagrostis moupinensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Franch. *''

Calamagrostis muiriana ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' B.L.Wilson & Sami Gray *'' Calamagrostis mulleri'' Luces *''

Calamagrostis munroi ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Boiss. *''

Calamagrostis nagarum ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Bor) G.Singh *''

Calamagrostis nardifolia ''Calamagrostis nardifolia'' is a species of grass native to the southern Andes. Description ''Calamagrostis nardifolia'' grows up to high, and bears a panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish ...

'' (Griseb.) Hack. ''ex'' Stuck. *''

Calamagrostis neesii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Steud. *''

Calamagrostis neocontracta ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Govaerts *'' Calamagrostis niitakayamensis'' Honda *''

Calamagrostis ningxiaensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' D.Z.Ma & J.N.Li *''

Calamagrostis nitidula ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Pilg. *''

Calamagrostis nivicola ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Hook.f.) Hand.-Mazz. *''

Calamagrostis nudiflora ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts *''

Calamagrostis nutkaensis ''Calamagrostis nutkaensis'' is a species of grass known by the common names Pacific reedgrass and Nootka reedgrass. It is native to western North America from Alaska to central California, where it is mainly a coastal species growing in moist a ...

'' (J.Presl) Steud. *''

Calamagrostis obtusata ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Trin. *'' Calamagrostis ophitidis'' (Howell) Nygren *''

Calamagrostis orbignyana ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Wedd.) Pilg. *''

Calamagrostis orizabae ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Rupr. ''ex'' E.Fourn.) Beal *'' Calamagrostis ovata'' (J.Presl) Steud. * ''Calamagrostis'' × ''paradoxa'' Lipsky *''

Calamagrostis parsana ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Bor) M.Dogan *''

Calamagrostis parviseta ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Reeder *''

Calamagrostis patagonica ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Speg.) Makloskie *''

Calamagrostis pavlovii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Roshev.) Roshev. *''

Calamagrostis perplexa ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Scribn. *'' Calamagrostis petelotii'' (Hitchc.) Govaerts *''

Calamagrostis pickeringii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' A.Gray *''

Calamagrostis pinetorum ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Swallen *'' Calamagrostis pisinna'' Swallen *''

Calamagrostis pittieri ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hack. *''

Calamagrostis planifolia ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Kunth) Trin. ''ex'' Steud. *''

Calamagrostis poluninii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' T.J.Sørensen *''

Calamagrostis polycephala ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Vaniot *'' Calamagrostis polygama'' (Griseb.) Parodi * ''Calamagrostis'' × ''ponojensis'' Montell *''

Calamagrostis porteri ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' A.Gray * ''Calamagrostis'' × ''prahliana'' Torges *'' Calamagrostis preslii'' (Kunth) Hitchc. *'' Calamagrostis pringlei'' Beal *''

Calamagrostis przevalskyi ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Tzvelev * ''Calamagrostis'' × ''pseudodeschampsioides'' Tzvelev *'' Calamagrostis pseudophragmites'' (Haller f.) Koeler *''

Calamagrostis pungens ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Tovar *''

Calamagrostis purpurascens ''Calamagrostis purpurascens'', is a perennial grass commonly known as purple reedgrass, purple pinegrass, or alpine reedgrass. It grows 30 to tall. Description ''Calamagrostis purpurascens'' is a large, clump forming, perennial grass; growing ...

'' R.Br. *''

Calamagrostis purpurea ''Calamagrostis purpurea'' is a species of grass in the family Poaceae. Its native range is Subarctic and Subalpine Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem ...

'' (Trin.) Trin. *''

Calamagrostis pusilla ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Reeder *''

Calamagrostis quadriseta ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' (Labill.) Spreng. *''

Calamagrostis radicans ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' Vaniot *'' Calamagrostis ramonae'' Escalona *'' Calamagrostis rauhii'' Tovar *''

Calamagrostis recta ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Kunth) Trin. ''ex'' Steud. *''

Calamagrostis reflexa ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' genera ...

'' (Vickery) Govaerts *''

Calamagrostis reitzii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Swallen * ''Calamagrostis'' × ''rigens'' Lindgr. *''

Calamagrostis rigescens ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (J.Presl) Scribn. *''

Calamagrostis rigida ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Kunth) Trin. ''ex'' Steud. *''

Calamagrostis rodwayi ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Vickery) Govaerts *''

Calamagrostis rosea ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Griseb.) Hack. *''

Calamagrostis rubescens ''Calamagrostis rubescens'' is a species of grass known by the common name pinegrass. Distribution It is native to western North America, including Canada from British Columbia to Manitoba and the United States from California to Colorado. It ca ...

'' Buckley *'' Calamagrostis rupestris'' Trin. *'' Calamagrostis sachalinensis'' F.Schmidt *''

Calamagrostis sajanensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Malyschev *''

Calamagrostis salina ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Tzvelev *''

Calamagrostis scaberula ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Swallen *''

Calamagrostis scabrescens ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Griseb. *'' Calamagrostis scabriflora'' Swallen *''

Calamagrostis sclerantha ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' Hack. *''

Calamagrostis sclerophylla ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Stapf) Hitchc. *'' Calamagrostis scopulorum'' M.E.Jones *''

Calamagrostis scotica ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Druce) Druce *''

Calamagrostis sesquiflora ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Trin.) Tzvelev *''

Calamagrostis setiflora ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Wedd.) Pilg. *''

Calamagrostis sichuanensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' J.L.Yang *'' Calamagrostis sikangensis'' (Keng) P.C.Kuo & S.L.Lu ''ex'' J.L.Yang *''

Calamagrostis sinelatior ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Keng) P.C.Kuo & S.L.Lu ''ex'' J.L.Yang *''

Calamagrostis smirnowii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Litv. ''ex'' Petrov *'' Calamagrostis spicigera'' (J.Presl) Steud. *''

Calamagrostis spruceana ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Wedd.) Hack. ''ex'' Sodiro *''

Calamagrostis srilankensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Davidse *''

Calamagrostis staintonii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' G.Singh *''

Calamagrostis stenophylla ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hand.-Mazz. *''

Calamagrostis steyermarkii ''Calamagrostis steyermarkii'' is a species of grass in the family Poaceae. It is found only in Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuad ...

'' Swallen *'' Calamagrostis stolizkai'' Hook.f. *'' Calamagrostis stricta'' (Timm) Koeler * ''Calamagrostis' × ''strigosa'' (Wahlenb.) Hartm. *'' Calamagrostis subacrochaeta'' Nakai * ''Calamagrostis'' × ''subchalybaea'' Tzvelev * ''Calamagrostis'' × ''subepigeios'' Tzvelev *'' Calamagrostis sublanceolata'' Honda * ''Calamagrostis'' × ''submonticola'' Prob. * ''Calamagrostis'' × ''subneglecta'' Tzvelev *'' Calamagrostis suka'' Speg. *''

Calamagrostis tacomensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' K.L.Marr & Hebda *'' Calamagrostis tarmensis'' Pilg. *''

Calamagrostis tashiroi ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Ohwi * ''Calamagrostis'' × ''tatianae'' Prob. *''

Calamagrostis teberdensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Litv. *'' Calamagrostis teretifolia'' Laegaard *''

Calamagrostis tianschanica ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Rupr. *''

Calamagrostis tibetica ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Bor) Tzvelev *''

Calamagrostis tolucensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family (biology), family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calam ...

'' (Kunth) Trin. ''ex'' Steud. * ''Calamagrostis'' × ''torgesiana'' Hausskn. *''

Calamagrostis trichodonta ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Wedd.) Soreng *''

Calamagrostis turkestanica ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hack. *''

Calamagrostis tweedyi ''Calamagrostis tweedyi'', the Cascade reedgrass or Tweedy's reedgrass, is a perennial in the grass family. It is native to the Pacific Northwest in the United States, in Washington, Oregon, Idaho, and Montana. Taxonomy Cascade reedgrass was fir ...

'' (Scribn.) Scribn. *''

Calamagrostis tzvelevii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Hüseyin * ''Calamagrostis'' × ''uralensis'' Litv. * ''Calamagrostis'' × ''ussuriensis'' Tzvelev *'' Calamagrostis valida'' Sohns *''

Calamagrostis varia ''Calamagrostis varia'' is a species of flowering plant from the family Poaceae which is native to Europe. Description The species is perennial and caespitose with short rhizomes and erect culms which are long. It ligule have an eciliate membr ...

'' (Schrad.) Host * ''Calamagrostis'' × ''vassiljevii'' Tzvelev *''

Calamagrostis velutina ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Nees & Meyen) Steud. *''

Calamagrostis veresczaginii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Zolot. *''

Calamagrostis vicunarum ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Wedd.) Pilg. *''

Calamagrostis villosa ''Calamagrostis villosa'' is a species of flowering plant from the family Poaceae which is native to Europe. Description The species is perennial and caespitose with short rhizomes and long culms. It ligule have an eciliate membrane which is ...

'' (Chaix) J.F.Gmel. * ''Calamagrostis'' × ''vilnensis'' Besser *''

Calamagrostis violacea ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Wedd.) Hack. *'' Calamagrostis viridiflavescens'' (Poir.) Steud. *''

Calamagrostis viridis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Phil.) Soreng *''

Calamagrostis vulcanica ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' Swallen *''

Calamagrostis yanyuanensis ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' J.L.Yang * ''Calamagrostis'' × ''yatabei'' Maxim. *''

Calamagrostis youngii ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Hook.f.) Buchanan *''

Calamagrostis zenkeri ''Calamagrostis'' (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of ''Calamagrostis'' general ...

'' (Trin.) Davidse * ''Calamagrostis'' × ''zerninensis'' Lüderw.

References

External links

Grass Genera of the World
{{Taxonbar, from=Q161134 Poaceae genera