''Helictotrichon'', or alpine oatgrass, is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

perennial In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the

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

. The genus name comes from the

Greek Greek may refer to: Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group *Greek language, a branch of the Indo-European language family **Proto-Greek language, the assumed last common ancestor of all kno ...

''heliktos'' meaning twisted, and ''trichos'' meaning hair, referring to the shape of the awn. Most of the species are

native Native may refer to: People * '' Jus sanguinis'', nationality by blood * '' Jus soli'', nationality by location of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Nat ...

to Africa and Eurasia with a few species in North America. '' Helictotrichon sempervirens'' is widely cultivated as an ornamental.Altervisita Flora Italiana, genere ''Helictotrichon''
/ref> ; SpeciesKew World Checklist of Selected Plant Families
/ref> * '' Helictotrichon altius'' (Hitchc.) Ohwi - China * '' Helictotrichon angustum'' C.E.Hubb. - Kenya, Yemen * '' Helictotrichon arctum'' Cope - Yemen * '' Helictotrichon barbatum'' (Nees) Schweick. - South Africa * '' Helictotrichon burmanicum'' Bor - Myanmar * '' Helictotrichon cantabricum'' (Lag.) Gervais - Pyrenees in France + Spain * '' Helictotrichon capense'' Schweick. - South Africa * '' Helictotrichon convolutum'' (C.Presl) Henrard - Italy, Greece, Balkans, Turkey, Syria, Lebanon * '' Helictotrichon cycladum'' (Rech.f. & T.C.Scheff.) Rech.f. - Greece incl Crete * '' Helictotrichon decorum'' (Janka) Henrard - Romania * '' Helictotrichon delavayi'' (Hack.) Henrard - China * '' Helictotrichon desertorum'' (Less.) Nevski - Austria, Czech Rep, Ukraine, Russia, Kazakhstan, Kyrgyzstan, Mongolia * '' Helictotrichon devesae'' Romero Zarco - Spain * '' Helictotrichon dodii'' (Stapf) Schweick. - South Africa * '' Helictotrichon elongatum'' (Hochst. ex A.Rich.) C.E.Hubb. - Madagascar; Africa from Chad to Eritrea to Zimbabwe * '' Helictotrichon fedtschenkoi'' (Hack.) Henrard - Kyrgyzstan, Tajikistan * '' Helictotrichon filifolium'' (Lag.) Henrard - Spain, Morocco, Algeria * '' Helictotrichon galpinii'' Schweick. - South Africa, Lesotho * '' Helictotrichon hideoi'' (Honda) Ohwi - Japan, Taiwan * '' Helictotrichon hirtulum'' (Steud.) Schweick. - South Africa, Lesotho * '' Helictotrichon hissaricum'' (Roshev.) Henrard - Tajikistan * '' Helictotrichon imberbe'' (Nees) Veldkamp - South Africa, Lesotho, Eswatini * '' Helictotrichon junghuhnii'' (Buse) Henrard - China, Indian Subcontinent, Myanmar, Sumatra, Java, New Guinea * '' Helictotrichon × krischae'' H.Melzer - Austria * '' Helictotrichon krylovii'' (Pavlov) Henrard -

Yakutia Sakha, officially the Republic of Sakha (Yakutia), is a republics of Russia, republic of Russia, and the largest federal subject of Russia by area. It is located in the Russian Far East, along the Arctic Ocean, with a population of one million ...

Magadan Magadan ( rus, Магадан, p=məɡɐˈdan) is a Port of Magadan, port types of inhabited localities in Russia, town and the administrative centre of Magadan Oblast, Russia. The city is located on the isthmus of the Staritsky Peninsula by the ...

* '' Helictotrichon lachnanthum'' (Hochst. ex A.Rich.) C.E.Hubb. -

Bioko Bioko (; ; ; historically known as Fernando Pó, ) is an island of Equatorial Guinea. It is located south of the coast of Cameroon, and northwest of the northernmost part of mainland Equatorial Guinea. Malabo, on the north coast of the is ...

, Ethiopia, Tanzania, Kenya, Uganda * '' Helictotrichon leianthum'' (Keng) Ohwi - China * '' Helictotrichon leoninum'' (Steud.) Schweick. - South Africa * '' Helictotrichon longifolium'' (Nees) Schweick. - South Africa, Lesotho * '' Helictotrichon longum'' (Stapf) Schweick. - South Africa * '' Helictotrichon macrostachyum'' (Balansa & Durieu) Henrard - Algeria * '' Helictotrichon mannii'' (Pilg.) C.E.Hubb. -

, Cameroon * '' Helictotrichon milanjianum'' (Rendle) C.E.Hubb. - Madagascar, East Africa * '' Helictotrichon mongolicum'' (Roshev.) Henrard - Siberia, Mongolia, Xinjiang, Kazakhstan * '' Helictotrichon mortonianum'' (Scribn.) Henrard - USA (Colorado, Wyoming, Utah, New Mexico) * '' Helictotrichon murcicum'' Holub - Spain * '' Helictotrichon namaquense'' Schweick. - South Africa * '' Helictotrichon natalense'' (Stapf) Schweick. - South Africa * '' Helictotrichon newtonii'' (Stapf) C.E.Hubb. - Angola * '' Helictotrichon parlatorei'' (J.Woods) Pilg. - Alps of France, Italy, Switzerland, Austria, Slovenia * '' Helictotrichon petzense'' H.Melzer - Alps of Austria, Slovenia * '' Helictotrichon planifolium'' (Willk.) Holub - Pyrenees in France + Spain * '' Helictotrichon polyneurum'' (Hook.f.) Henrard -

Tamil Nadu Tamil Nadu (; , TN) is the southernmost States and union territories of India, state of India. The List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of Indi ...

* '' Helictotrichon potaninii'' Tzvelev -

Sichuan Sichuan is a province in Southwestern China, occupying the Sichuan Basin and Tibetan Plateau—between the Jinsha River to the west, the Daba Mountains to the north, and the Yunnan–Guizhou Plateau to the south. Its capital city is Cheng ...

* '' Helictotrichon quinquesetum'' (Steud.) Schweick. - South Africa * '' Helictotrichon requienii'' (Mutel) Henrard - France + Spain * '' Helictotrichon rogerellisii'' Mashau, Fish & A.E.van Wyk - South Africa * '' Helictotrichon roggeveldense'' Mashau, Fish & A.E.van Wyk - South Africa * '' Helictotrichon sangilense'' Krasnob. -

Tuva Tuva (; ) or Tyva (; ), officially the Republic of Tyva,; , is a Republics of Russia, republic of Russia. Tuva lies at the geographical center of Asia, in southern Siberia. The republic borders the Federal subjects of Russia, federal sub ...

in Siberia * '' Helictotrichon sarracenorum'' (Gand.) Holub - Spain * '' Helictotrichon schmidii'' (Hook.f.) Henrard - India, China * '' Helictotrichon sedenense'' (Clarion ex DC.) Holub - France, Spain, Italy, Morocco * '' Helictotrichon sempervirens'' (Vill.) Pilg. - Blue oat grass - France, Italy * '' Helictotrichon setaceum'' (Vill.) Henrard - France, Italy * '' Helictotrichon sumatrense'' Ohwi - Sumatra * '' Helictotrichon tianschanicum'' (Roshev.) Henrard - Kyrgyzstan, Tajikistan, Kazakhstan, Xinjiang * '' Helictotrichon tibeticum'' (Roshev.) Holub - China incl Tibet + Xinjiang * '' Helictotrichon turcomanicum'' Czopanov - Turkmenistan * '' Helictotrichon umbrosum'' (Hochst. ex Steud.) C.E.Hubb. - Ethiopia, Sudan, South Sudan, Kenya, Uganda, Tanzania * '' Helictotrichon uniyalii'' Kandwal & B.K.Gupta -

Uttarakhand Uttarakhand (, ), also known as Uttaranchal ( ; List of renamed places in India, the official name until 2007), is a States and union territories of India, state in North India, northern India. The state is bordered by Himachal Pradesh to the n ...

* '' Helictotrichon yunnanense'' S.Wang & B.S.Sun -

Yunnan Yunnan; is an inland Provinces of China, province in Southwestern China. The province spans approximately and has a population of 47.2 million (as of 2020). The capital of the province is Kunming. The province borders the Chinese provinces ...

; formerly included Many species once considered part of ''Helictotrichon'' are now regarded as better suited to other genera. A large number are now in ''Helictochloa'' with smaller numbers of species in ''

Amphibromus ''Amphibromus'' is a genus of grasses in the family Poaceae. Most are known as swamp wallaby grass.Thieret, J. W''Amphibromus''. Grass Manual. Flora of North America.Arrhenatherum ''Arrhenatherum'', commonly called oat-grass or button-grass, is a genus of Eurasian and North African plants in the Poaceae, grass family. Description Wild forms can resemble avena, wild oat (''Avena'') or festuca, fescue (''Festuca''). Oat-gra ...

Avenula Danthoniastrum Duthiea

Tricholemma ''Tricholemma'' is a genus of North African plants in the grass family. ; Species * '' Tricholemma breviaristatum'' (Barratte) Röser - Algeria * '' Tricholemma jahandiezii'' (Litard. ex Jahand. & Maire) Röser - Algeria, Morocco See also * ...

'' and '' Trisetum''.

References

{{Authority control Bunchgrasses of Africa Bunchgrasses of Asia Bunchgrasses of Europe Poaceae genera Taxonomy articles created by Polbot