''Dichanthelium'' is genus of flowering plants of the grass family,

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 ...

. They are known commonly as rosette grasses and panicgrasses.''Dichanthelium''.
USDA PLANTS.

Taxonomy

Formerly a subgenus of the genus '' Panicum'', ''Dichanthelium'' was elevated to genus status in 1974. Its species are still treated as members of ''Panicum'' by some authorities, because the two genera are very similar in form. Molecular data support the recognition of ''Dichanthelium'' as a separate genus.Freckmann, R. W. and M. G. Lelong
''Dichanthelium''.
The Grass Manual. Flora of North America. The name ''Dichanthelium'' originates from the Greek for "twice-flowering", in reference to the vernal and autumnal growth phases.

Description

These are perennial grasses, sometimes with

rhizome In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...

s. The grasses may overwinter as rosettes of short, wide leaves and then produce longer, wider leaves on the stem during spring. They produce hollow stems a few centimeters tall to well over one meter. They are upright to erect when new, then sometimes sprawling, spreading, and bending as the season progresses. The upper stems may have a few main branches that divide into smaller branches bearing

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 ...

s. There are primary panicles, which may be

chasmogamous Chasmogamy, is a plant reproductive mechanism in which pollination occurs in chasmogamous flowers. Chasmogamous flowers are commonly showy with open petals encircling exposed reproductive parts. Chasmogamous stems from Greek for "open marriage", na ...

, and secondary panicles, which are often cleistogamous. The spikelets are roughly 1 to 5 millimeters long and lack awns. In the Chicago area, ''Dichanthelium'' is considered the most emblematic genus of the Gulf and

Atlantic coastal plain The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth#Surface, Earth's surface and about 29% of its water surface area. It is known to separate the "Old World" of Afr ...

disjunct habitat found in that region.

Species

There are about 72 species in the genus. Species include:GRIN Species Records of ''Dichanthelium''.
Germplasm Resources Information Network (GRIN). Dichanthelium leibergii syn Panicum leibergii

Dichanthelium leibergii syn Panicum leibergii

Dichanthelium sphaerocarpon inflorescence

*''

Dichanthelium aciculare ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium acuminatum ''Dichanthelium acuminatum'', the tapered rosette grass, is a species of grass from the genus ''Dichanthelium ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgra ...

'' (Sw.) Gould &C.A. Clark – tapered rosette grass, hotsprings rosette grass, hairy panicgrass *''

Dichanthelium adenorhachis ''Dichanthelium'' is genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and b ...

'' (Zuloaga & Morrone) Zuloaga *''

Dichanthelium aequivaginatum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium albomaculatum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium angustifolium ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium annulum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium assurgens ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium boreale ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium boscii ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium cabrerae ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium caerulescens'' (Hack. ex Hitchc.) Correll *'' Dichanthelium caparoense'' (Zuloaga & Morrone) Zuloaga *''

Dichanthelium chamaelonche ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium clandestinum ''Dichanthelium clandestinum'' is a species of grass known by the common name deertongue. It is native to eastern North America, including eastern Canada and the eastern United States.Dichanthelium columbianum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium commonsianum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium commutatum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium congestum'' (Renvoize) Zuloaga *''

Dichanthelium conjugens ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium cordovense ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium cucaense'' (Zuloaga & Morrone) Zuloaga *''

Dichanthelium cumbucana ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium cynodon ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium davidsei ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium depauperatum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium dichotomum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium ensifolium'' (Baldwin ex Elliott) Gould – sword-leaf panicgrass *'' Dichanthelium forbesii'' (Hitchc.) C.A. Clark & Gould *''

Dichanthelium fusiforme ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium hebotes'' (Trin.) Zuloaga *'' Dichanthelium heliophilum'' (Chase ex Zuloaga & Morrone) Zuloaga *'' Dichanthelium hillebrandianum'' (Hitchc.) C.A.Clark & Gould – bog rosette grass *'' Dichanthelium hirstii'' (Swallen) Kartesz – Hirst's panicgrass *''

Dichanthelium implicatum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium isachnoides ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium itatiaiae ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium joori ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium koolauense'' (H.St.John & Hosaka) C.A.Clark & Gould – Koolau rosette grass *''

Dichanthelium lanuginosum ''Dichanthelium lanuginosum'' is a species of rosette grass native to North America. It is most common in the central and eastern United States. It is found in a variety of habitats, mostly in open, dry areas. A variety, ''D. lanuginosum'' var. ...

'' (Elliott) Gould *'' Dichanthelium latifolium'' (L.) Harvill – broadleaf rosette grass *'' Dichanthelium laxiflorum'' (Lam.) Gould – openflower rosette grass, soft-tufted panicgrass *''

Dichanthelium leibergii ''Dichanthelium leibergii'', known as variously as Leiberg's panicum, Leiberg's panicgrass, Leiberg's rosette grass, and prairie panic grass is a species of grass native to North America. It was named for its discoverer, John Bernhard Leiberg (18 ...

'' (Vasey) Freckmann – Leiberg's rosette grass *'' Dichanthelium leucoblepharis'' (Trin.) Gould & C.A.Clark *'' Dichanthelium lindheimeri'' (Nash) Gould *'' Dichanthelium linearifolium'' (Scribn.) Gould – slimleaf rosette grass, linear-leaved panicgrass *'' Dichanthelium lucidum'' (Ashe) LeBlond *'' Dichanthelium macrospermum'' Gould *''

Dichanthelium malacophyllum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium mattamuskeetense'' (Ashe) Mohlenbr. *''

Dichanthelium microcarpon ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium nitidum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium nodatum'' (Hitchc. & Chase) Gould – Sarita rosette grass *''

Dichanthelium nudicaule ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium oligosanthes ''Dichanthelium oligosanthes'', known as Heller's rosette grass, fewanther obscuregrass, and few-flowered panicgrass, is a frost-tolerant, perennial grass species native to North America. It is found primarily in the contiguous United States with ...

'' (Schult.) Gould – Heller's rosette grass, fewanther obscuregrass, few-flowered panicgrass *''

Dichanthelium ovale ''Dichanthelium ovale'', commonly known as eggleaf rosette grass, is a plant found in North America. ''Dichanthelium ovale'' subsp. ''pseudopubescens'', common name Stiff-leaved rosette-panicgrass is listed as a special concern and believed exti ...

'' (Elliott) Gould & C.A.Clark – eggleaf rosette grass, stiff-leaved panicgrass *'' Dichanthelium pantrichum'' (Hack.) Davidse *'' Dichanthelium pedicellatum'' (Vasey) Gould – cedar rosette grass, corm-based panicgrass *'' Dichanthelium peristypum'' (Zuloaga & Morrone) Zuloaga *'' Dichanthelium perlongum'' (Nash) Freckmann – long-stalked panicgrass *''

Dichanthelium petropolitanum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium polyanthes ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium portoricense ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium pycnoclados'' (Tutin) Davidse *''

Dichanthelium ravenelii ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium sabulorum'' (Lam.) Gould & C.A.Clark – hemlock rosette grass *'' Dichanthelium scabriusculum'' (Elliott) Gould & C.A.Clark – woolly rosette grass, tall-swamp panicgrass *''

Dichanthelium sciurotis ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium sciurotoides ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium scoparioides'' (Ashe) Mohlenbr. *''

Dichanthelium scoparium ''Dichanthelium scoparium'' is a species of grass known by the common names velvet panicum, velvety panicgrass, and broom panicgrass. It is native to North America, where it occurs in the southeastern United States. It also occurs in the West I ...

'' (Lam.) Gould – velvet panicum *''

Dichanthelium scribnerianum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium sendulskyii'' (Zuloaga & Morrone) Zuloaga *''

Dichanthelium sphaerocarpon ''Dichanthelium sphaerocarpon'', also called ''Panicum polyanthes'', common name round-seed panic grass, is a plant found in North America North America is a continent in the Northern Hemisphere and almost entirely within the Wester ...

'' (Elliott) Gould – roundseed panicgrass, round-fruited panicgrass *'' Dichanthelium sphagnicola'' (Nash) LeBlond *''

Dichanthelium stigmosum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium stipiflorum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium strigosum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium superatum'' (Hack.) Zuloaga *'' Dichanthelium surrectum'' (Chase ex Zuloaga & Morrone) Zuloaga *''

Dichanthelium telmatum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium umbonulatum'' (Swallen) Davidse *'' Dichanthelium viscidellum'' (Scribn.) Gould *''

Dichanthelium wilcoxianum ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium xalapense ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses.Dichanthelium xanthophysum'' (A. Gray) Freckmann – slender rosette grass, pale panicgrass *''

Dichanthelium yadkinense ''Dichanthelium'' is genus of flowering plants of the grass family, Poaceae. They are known commonly as rosette grasses and panicgrasses. Poaceae genera