Sheep ( lat. Helictótrichon ) - a genus of perennial herbaceous plants of the family Cereals, or Bluegrass ( Poaceae ).
| Ovsets | |||||||||||||||||||||||||
 Evergreen ( Helictotrichon sempervirens ) | |||||||||||||||||||||||||
| Scientific classification | |||||||||||||||||||||||||
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| International Scientific Name | |||||||||||||||||||||||||
Helictotrichon Besser (1827) | |||||||||||||||||||||||||
| Synonyms | |||||||||||||||||||||||||
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Helictotrichon sempervirens ( Vill. ) Pilg. [2] - Evergreen Ears | |||||||||||||||||||||||||
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The scientific name of the genus came from Greek, from the words helictos - “twisted” and trix - “hair”, because of the lower floral scales twisted in the lower part of the awns [3] .
Botanical description
Perennial herbaceous plants about 1 meter high with creeping underground shoots (or without them), sometimes forming dense turfs.
Stems erect, vaginas split to different degrees, without ears. Leaf blades linear or even narrowly linear, often bristle-like rolled or folded along, up to 12 mm wide.
The number of chromosomes is 7. [3]
Spread
Representatives of the genus are distributed outside the tropics in large parts of Eurasia, in North and South Africa. In the Asian and African tropics found in the highlands.
17 species grow on the territory of the former USSR. [3]
Meaning and application
All species of the genus are fodder pasture plants of poor quality, due to the high rigidity of leaf blades. Mesophilic alpine species are valued above others. [3]
Taxonomy
According to the Kew Royal Botanic Gardens, the genus includes 41 species [4] : according to other sources, the genus unites 90 species [5] .
Views from Kew Gardens:
- Helictotrichon altius ( Hitchc. ) Ohwi (1941)
- Helictotrichon asperum ( Munro ex Thwaites ) Bor (1938)
- Helictotrichon burmanicum Bor (1952)
- Helictotrichon cantabricum ( Lag. ) Gervais (1973)
- Helictotrichon convolutum ( C.Presl ) Henrard (1940)
- Helictotrichon cycladum (Rech.f. & TCScheff. ) Rech.f. (1943)
- Helictotrichon decorum ( Janka ) Henrard (1940)
- Helictotrichon delavayi ( Hack. ) Henrard (1940)
- Helictotrichon desertorum ( Less. ) Pilg. (1938) - Desert Sheep
- Helictotrichon devesae Romero Zarco (2007)
- Helictotrichon fedtschenkoi ( Hack. ) Henrard (1940) - Hovsets Fedchenko
- Helictotrichon filifolium ( Lag. ) Henrard (1940)
- Helictotrichon hideoi ( Honda ) Ohwi (1937)
- Helictotrichon hissaricum ( Roshev. ) Henrard (1940) - Hissar Hissar
- Helictotrichon junghuhnii ( Buse ) Henrard (1940)
- Helictotrichon × krischae H. Melzer (1968)
- Helictotrichon krylovii ( Pavlov ) Henrard (1940) - Aries Krylov
- Helictotrichon leianthum ( Keng ) Ohwi (1941)
- Helictotrichon macrostachyum ( Balansa ex Coss. & Durrieu ) Henrard (1940)
- Helictotrichon mongolicum (Roshev.) Henrard (1940) - Mongolian Awe
- Helictotrichon mortonianum ( Scribn. ) Henrard (1940)
- Helictotrichon murcicum Holub (1977)
- Helictotrichon parlatorei ( J.Woods ) Pilg. (1938)
- Helictotrichon parviflorum ( Hook.f. ) Bor (1952)
- Helictotrichon petzense H. Melzer (1968)
- Helictotrichon planifolium ( Willk. ) Holub (1974)
- Helictotrichon polyneurum (Hook.f.) Henrard (1940)
- Helictotrichon potaninii Tzvelev (1968)
- Helictotrichon sangilense Krasnob. (1977)
- Helictotrichon sarracenorum ( Gand. ) Holub (1959)
- Helictotrichon schmidii (Hook.f.) Henrard (1940)
- Helictotrichon sedenense ( Clarion ex DC. ) Holub (1970)
- Helictotrichon sempervirens ( Vill. ) Pilg. (1938) typus [2] - Evergreen Ears
- Helictotrichon setaceum (Vill.) Henrard (1940)
- Helictotrichon sumatrense Ohwi (1947)
- Helictotrichon tianschanicum (Roshev.) Henrard (1940) - Ovsets Tianshan
- Helictotrichon tibeticum (Roshev.) Keng f. (1957)
- Helictotrichon turcomanicum Czopanov (1970) - Ovsets Turkmen
- Helictotrichon uniyalii Kandwal & BKGupta (2010)
- Helictotrichon virescens ( Nees ex Steud. ) Henrard (1940)
- Helictotrichon yunnanense S.Wang & BSSun (1993)
Some species previously attributed to this now belong to the genus Trisetopsis Röser & A.Wölk (2013) .
Notes
- ↑ On the conditionality of specifying the class of monocotyledons as a higher taxon for the group of plants described in this article, see the “APG Systems” section of the article “Monocotyledons” .
- ↑ 1 2 Information about the genus Helictotrichon (English) in the Index Nominum Genericorum database of the International Association for Plant Taxonomy (IAPT) .
- ↑ 1 2 3 4 Tsvelev, 1976 .
- ↑ List of species of the genus Helictotrichon Besser (English) . World Checklist of Selected Plant Families (WCSP) . Royal Botanic Gardens, Kew . The date of circulation is June 30, 2017.
- ↑ Species of the genus Helictotrichon according to The Plant List .
Literature
- Tsvelev N.N. Genus 40. Habsets - Helictotrichon Bess. // Grains of the USSR / holes. ed. An. A. Fedorov . - L .: Nauka , 1976. - S. 243-250. - 788 p. - 2900 copies
Links
- Ovsets : information about the taxon in the Planterium project (a determinant of plants and an illustrated atlas of species). (Verified January 7, 2014)