|
Festuca
''Festuca'' (fescue) is a genus of flowering plants belonging to the grass family Poaceae (subfamily Pooideae). They are evergreen or herbaceous perennial tufted grasses with a height range of and a cosmopolitan distribution, occurring on every continent except Antarctica. The genus is closely related to ryegrass (''Lolium''), and recent evidence from phylogenetic studies using DNA sequencing of plant mitochondrial DNA shows that the genus lacks monophyly. As a result, plant taxonomists have moved several species, including the forage grasses tall fescue and meadow fescue, from the genus ''Festuca'' into the genus ''Lolium'', or alternatively into the segregate genus ''Schedonorus''. Because the taxonomy is complex, scientists have not determined how many true species belong to the genus, but estimates range from more than 400 to over 640.Darbyshire, S. J. and L. E. Pavlick''Festuca''. Grass Manual. Flora of North America. Fescue pollen is a significant contributor to hay feve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Festuca
''Festuca'' (fescue) is a genus of flowering plants belonging to the grass family Poaceae (subfamily Pooideae). They are evergreen or herbaceous perennial tufted grasses with a height range of and a cosmopolitan distribution, occurring on every continent except Antarctica. The genus is closely related to ryegrass (''Lolium''), and recent evidence from phylogenetic studies using DNA sequencing of plant mitochondrial DNA shows that the genus lacks monophyly. As a result, plant taxonomists have moved several species, including the forage grasses tall fescue and meadow fescue, from the genus ''Festuca'' into the genus ''Lolium'', or alternatively into the segregate genus ''Schedonorus''. Because the taxonomy is complex, scientists have not determined how many true species belong to the genus, but estimates range from more than 400 to over 640.Darbyshire, S. J. and L. E. Pavlick''Festuca''. Grass Manual. Flora of North America. Fescue pollen is a significant contributor to hay feve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Festuca Pratensis
''Festuca pratensis'', the meadow fescue, is a perennial species of grass, which is often used as an ornamental grass in gardens, and is also an important forage crop. It grows in meadows, roadsides, old pastures, and riversides on moist, rich soils, especially on loamy and heavy soils. It is a tall, tufted grass similar to the tall fescue, ''Festuca arundinacea''. Tall fescue differs by having minute hairs on the auricles. It can hybridise with ''Lolium perenne'' and ''Lolium multiflorum''. Description It is a perennial bunchgrass, (i.e. grows in tufts), which grows , flowering from June until August. The panicles are green to purplish. The spikelets have 5 to 14 flowers. It has a short, blunt 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 ... compared to other gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Festuca Gigantea
''Festuca gigantea'', or giant fescue, is a plant species in the grass family, Poaceae. Because this and other members of ''Festuca'' subgenus ''Schedonorus'' have more in common morphologically with members of the genus '' Lolium'' than with ''Festuca'' and often produce fertile hybrids with other ''Lolium'' species, ''Festuca gigantea'' has been recently published as ''Lolium giganteum'' and then as ''Schedonorus giganteus'' . Sources vary as to which placement is more acceptable. Description This grass can grow up to 2 metres. It is loosely tufted, hairless, and has auricles. It has dark red-purple leaf nodes, and there are six 8–13 mm long spikelets. Festuca Gigantea have long awns, forming flowers during the July to August period. It is a common plant found especially on heavy, neutral and calcerous soils, in woodland, hedge banks and shady places. It is said to grow best in moist woods. Festuca gigantea produces fertile hybrids with perennial ryegrass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 and pasture. The latter are commonly referred to collectively as grass. With around 780 genera and around 12,000 species, the Poaceae is the fifth-largest plant family, following the Asteraceae, Orchidaceae, Fabaceae and Rubiaceae. The Poaceae are the most economically important plant family, providing staple foods from domesticated cereal crops such as maize, wheat, rice, barley, and millet as well as feed for meat-producing animals. They provide, through direct human consumption, just over one-half (51%) of all dietary energy; rice provides 20%, wheat supplies 20%, maize (corn) 5.5%, and other grains 6%. Some members of the Poaceae are used as building materials (bamboo, thatch, and straw); others can provide a source of biofuel, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schedonorus
''Lolium'' is a genus of tufted grasses in the bluegrass subfamily (Pooideae). It is often called ryegrass, but this term is sometimes used to refer to grasses in other genera. They are characterized by bunch-like growth habits. ''Lolium'' is native to Europe, Asia and northern Africa, as well as being cultivated and naturalized in Australia, the Americas, and various oceanic islands. Ryegrasses are naturally diploid, with 2n=14, and are closely related to the fescues (''Festuca''). Ryegrass should not be confused with rye, which is a grain crop. Species Species of ''Lolium'' include: * ''Lolium arundinaceum'' (Schreb.) Darbysh. - Eurasia + North Africa from Portugal + Canary Islands to Himalayas + Xinjiang; naturalized in East Asia, Australia, North + South America, various islands * ''Lolium canariense'' Steud. - Canary Islands ryegrass - Canary Islands, Cape Verde * ''Lolium giganteum '' Lam. - Eurasia from Ireland to China; Bioko * ''Lolium hybridum'' Hausskn. - Assam, B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ryegrass
''Lolium'' is a genus of tufted grasses in the bluegrass subfamily (Pooideae). It is often called ryegrass, but this term is sometimes used to refer to grasses in other genera. They are characterized by bunch-like growth habits. ''Lolium'' is native to Europe, Asia and northern Africa, as well as being cultivated and naturalized in Australia, the Americas, and various oceanic islands. Ryegrasses are naturally diploid, with 2n=14, and are closely related to the fescues (''Festuca''). Ryegrass should not be confused with rye, which is a grain crop. Species Species of ''Lolium'' include: * ''Lolium arundinaceum'' (Schreb.) Darbysh. - Eurasia + North Africa from Portugal + Canary Islands to Himalayas + Xinjiang; naturalized in East Asia, Australia, North + South America, various islands * ''Lolium canariense'' Steud. - Canary Islands ryegrass - Canary Islands, Cape Verde * ''Lolium giganteum '' Lam. - Eurasia from Ireland to China; Bioko * ''Lolium hybridum'' Hausskn. - Assam, B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poeae
The Poeae are the largest tribe of the grasses, with around 2,500 species in 121 genera. The tribe includes many lawn and pasture grasses. Taxonomy Two separate tribes, Poeae and Aveneae, used to be distinguished based on morphology, but phylogenetic analysis showed that they are intermingled. Poeae now includes the former Aveneae. Phylogenetic analyses identified two lineages based on chloroplast genomes. The genera are classified in 25 subtribes. Reticulate evolution Reticulate evolution, or network evolution is the origination of a lineage through the partial merging of two ancestor lineages, leading to relationships better described by a phylogenetic network than a bifurcating tree. Reticulate patterns ca ... occurred repeatedly in the tribe. Chloroplast group 1 Chloroplast group 2 References External links *Commons category-inline, Poeae Poaceae tribes Taxa named by Robert Brown (botanist, born 1773) {{Pooideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus
''Bromus'' is a large genus of grasses, classified in its own tribe Bromeae. They are commonly known as bromes, brome grasses, cheat grasses or chess grasses. Estimates in the scientific literature of the number of species have ranged from 100 to 400, but plant taxonomists currently recognize around 160–170 species. ''Bromus'' is part of the cool-season grass lineage (subfamily Pooideae), which includes about 3300 species. Within Pooideae, ''Bromus'' is classified in tribe Bromeae (it is the only genus in the tribe). ''Bromus'' is closely related to the wheat-grass lineage (tribe Triticeae) that includes such economically important genera as ''Triticum'' (wheat), ''Hordeum'' (barley) and '' Secale'' (rye). Etymology The generic name ''Bromus'' is derived from the Latin ''bromos'', a borrowed word from the Ancient Greek (). and mean ''oats'', but seems to have referred specifically to ''Avena sativa'' (Hippocrates ''On Regimen in Acute Diseases'' 2.43, Dioscorides Med ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Secalinus
''Bromus secalinus'' is a species of bromegrass known as rye brome. The specific epithet ''secalinus'' is Latin, meaning "rye-like". The fruits are hard, rounded glumes that appear superficially similar to the rye grain, which gives the brome its common and scientific name. The grass has a diploid number of 28. The grass is native to Eurasia but is well known in many other parts of the world where it has been introduced. It is a noxious weed throughout much of North America. Description ''Bromus secalinus'' is an annual grass that grows high. The upper sheaths are smooth and strongly nerved, and the lower sheaths are glabrous or slightly pubescent. The leaf blades are long and wide, and are covered with short hairs. The panicles are long and wide with spreading or ascending branches. The spreading inflorescence nods when it becomes heavy with grain though prior to maturity the panicle is erect. The spikelets are on elongated pedicels, with each spikelet bearing five to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dodoens
Rembert Dodoens (born Rembert Van Joenckema, 29 June 1517 – 10 March 1585) was a Flemish physician and botanist, also known under his Latinized name Rembertus Dodonaeus. He has been called the father of botany. Life Dodoens was born Rembert van Joenckema in Mechelen, then the capital of the Spanish Netherlands in 1517. His parents were Denis van Joenckema (d. 1533) and Ursula Roelants. The van Joenckema family and name are Frisian in origin. Its members were active in politics and jurisprudence in Friesland and some had moved in 1516 to Mechelen. His father was one of the municipal physicians in Mechelen and a private physician to Margaret of Austria, Governor of the Netherlands, in her final illness. Margaret of Austria's court was based in Mechelen. Rembert later changed his last name to Dodoens (literally "Son of Dodo", a form of his father's name, Denis or Doede). He was educated at the municipal college in Mechelen before beginning his studies in medicine, cosmogra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliny The Elder
Gaius Plinius Secundus (AD 23/2479), called Pliny the Elder (), was a Roman author, naturalist and natural philosopher, and naval and army commander of the early Roman Empire, and a friend of the emperor Vespasian. He wrote the encyclopedic ''Naturalis Historia'' (''Natural History''), which became an editorial model for encyclopedias. He spent most of his spare time studying, writing, and investigating natural and geographic phenomena in the field. His nephew, Pliny the Younger, wrote of him in a letter to the historian Tacitus: Among Pliny's greatest works was the twenty-volume work ''Bella Germaniae'' ("The History of the German Wars"), which is no longer extant. ''Bella Germaniae'', which began where Aufidius Bassus' ''Libri Belli Germanici'' ("The War with the Germans") left off, was used as a source by other prominent Roman historians, including Plutarch, Tacitus and Suetonius. Tacitus—who many scholars agree had never travelled in Germania—used ''Bella Germani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
