''Ptilagrostis'' is a genus of

grass 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 law ...

es in the family Poaceae. They are distributed in

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and North America.Flora of China Vol. 22 Page 204 细柄茅属 xi bing mao shu ''Ptilagrostis'' Grisebach in Ledebour, Fl. Ross. 4: 447. 1852.
/ref> They are known commonly as false needlegrasses.''Ptilagrostis''.
Integrated Taxonomic Information System (ITIS). Plants of this genus were originally separated from the genus ''

Stipa ''Stipa'' is a genus of around 300 large perennial hermaphroditic grasses collectively known as feather grass, needle grass, and spear grass. They are placed in the subfamily Pooideae and the tribe Stipeae, which also contains many species fo ...

'',Hamasha, H. R., et al. (2012)
''Stipa'' (Poaceae) and allies in the Old World: molecular phylogenetics realigns genus circumscription and gives evidence on the origin of American and Australian lineages.
''Plant Systematics and Evolution'' 298(2), 351-67. and their relationship to that genus is still unclear. Some authorities still include them in ''Stipa'',''Ptilagrostis''.
Germplasm Resources Information Network (GRIN). sometimes classifying ''Ptilagrostis'' as a section of that genus. Some species are difficult to separate, being intermediate in form. Most ''Ptilagrostis'' are variable plants. Many species have several forms and variants. The genus is characterized in part by the papery, toothed

lemmas Lemma may refer to: Language and linguistics * Lemma (morphology), the canonical, dictionary or citation form of a word * Lemma (psycholinguistics), a mental abstraction of a word about to be uttered Science and mathematics * Lemma (botany), a ...

of the spikelets, which have bent, plume-haired awns and do not overlap. This character separates the genus from ''Stipa'' and another close relative, the genus ''

Achnatherum ''Achnatherum'' is a genus of plants which includes several species of needlegrass. Several needlegrass species have been switched between ''Achnatherum'' and genus ''Stipa''; taxonomy between the two closely related genera is still uncertain. ' ...

''.Peterson, P. M., et al. (2005)
''Ptilagrostis luquensis'' (Poaceae: Pooideae: Stipeae: Stipinae), a new species from China.
''Sida'' 21, 1355-62. ''Ptilagrostis'' species are generally tufted perennial grasses with erect stems. The spikelets are borne in an open or somewhat open

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 In botany, a fruit is the seed-bearing structure in flowering plants that is ...

. Each has one flower. The awn is twisted and bent once or twice. ; SpeciesKew World Checklist of Selected Plant Families
/ref>GRIN Species Records of ''Ptilagrostis''.
Germplasm Resources Information Network (GRIN). * '' Ptilagrostis alpina'' -

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Ptilagrostis concinna ''Ptilagrostis'' is a genus of grasses in the family Poaceae. They are distributed in Asia and North America. They are known commonly as false needlegrasses.Gansu,

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, Jammu-Kashmir,

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Ptilagrostis dichotoma ''Ptilagrostis'' is a genus of grasses in the family Poaceae. They are distributed in Asia and North America. They are known commonly as false needlegrasses.Gansu,

Inner Mongolia Inner Mongolia, officially the Inner Mongolia Autonomous Region, is an autonomous region of the People's Republic of China. Its border includes most of the length of China's border with the country of Mongolia. Inner Mongolia also accounts for ...

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* '' Ptilagrostis junatovii'' - Altai Krai,

Tuva Tuva (; russian: Тува́) or Tyva ( tyv, Тыва), officially the Republic of Tuva (russian: Респу́блика Тыва́, r=Respublika Tyva, p=rʲɪˈspublʲɪkə tɨˈva; tyv, Тыва Республика, translit=Tyva Respublika ...

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Ptilagrostis kingii ''Ptilagrostis kingii'' is a species of grass known by the common names Sierra false needlegrass and King's ricegrass. It is endemic to the high mountains of the Sierra Nevada of California, where it grows in meadows and near streams in subalpin ...

'' -

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primari ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the ...

* ''

Ptilagrostis luquensis ''Ptilagrostis'' is a genus of grasses in the family Poaceae. They are distributed in Asia and North America. They are known commonly as false needlegrasses.Gansu,

* ''

Ptilagrostis malyschevii ''Ptilagrostis'' is a genus of grasses in the family Poaceae. They are distributed in Asia and North America. They are known commonly as false needlegrasses.Kyrgyzstan Kyrgyzstan,, pronounced or the Kyrgyz Republic, is a landlocked country in Central Asia. Kyrgyzstan is bordered by Kazakhstan to the north, Uzbekistan to the west, Tajikistan to the south, and the People's Republic of China to the ea ...

* ''

Ptilagrostis milleri ''Ptilagrostis'' is a genus of grasses in the family Poaceae. They are distributed in Asia and North America. They are known commonly as false needlegrasses.Sikkim Sikkim (; ) is a state in Northeastern India. It borders the Tibet Autonomous Region of China in the north and northeast, Bhutan in the east, Province No. 1 of Nepal in the west and West Bengal in the south. Sikkim is also close to the Siligu ...

Nobis, M. and A. Nobis. (2013)
''Ptilagrostis milleri'' comb. nov. (Poaceae: Stipeae).
''Nordic Journal of Botany'' 31(5), 623–25. * '' Ptilagrostis mongholica'' - Gansu,

Hebei Hebei or , (; alternately Hopeh) is a northern province of China. Hebei is China's sixth most populous province, with over 75 million people. Shijiazhuang is the capital city. The province is 96% Han Chinese, 3% Manchu, 0.8% Hui, and ...

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Jilin Jilin (; alternately romanized as Kirin or Chilin) is one of the three provinces of Northeast China. Its capital and largest city is Changchun. Jilin borders North Korea ( Rasŏn, North Hamgyong, Ryanggang and Chagang) and Russia (P ...

, Liaoning,

Shanxi Shanxi (; ; formerly romanised as Shansi) is a landlocked province of the People's Republic of China and is part of the North China region. The capital and largest city of the province is Taiyuan, while its next most populated prefecture-lev ...

, Jammu-Kashmir,

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part o ...

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Ptilagrostis pellioti ''Ptilagrostis'' is a genus of grasses in the family Poaceae. They are distributed in Asia and North America. They are known commonly as false needlegrasses.Gansu,

Ningxia Ningxia (,; , ; alternately romanized as Ninghsia), officially the Ningxia Hui Autonomous Region (NHAR), is an autonomous region in the northwest of the People's Republic of China. Formerly a province, Ningxia was incorporated into Gansu in ...

* ''

Ptilagrostis porteri ''Ptilagrostis'' is a genus of grasses in the family Poaceae. They are distributed in Asia and North America. They are known commonly as false needlegrasses.Rocky Mountains The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in straight-line distance from the northernmost part of western Canada, to New Mexico in ...

Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe, New Mexico, Santa Fe , LargestCity = Albuquerque, New Mexico, Albuquerque , LargestMetro = Albuquerque metropolitan area, Tiguex , Offi ...

* ''

Ptilagrostis schischkinii ''Ptilagrostis'' is a genus of grasses in the family Poaceae. They are distributed in Asia and North America. They are known commonly as false needlegrasses.Xinjiang Xinjiang, SASM/GNC: ''Xinjang''; zh, c=, p=Xīnjiāng; formerly romanized as Sinkiang (, ), officially the Xinjiang Uygur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest ...

* '' Ptilagrostis yadongensis'' -

; formerly included see ''

'' * ''Ptilagrostis tianschanica -

Stipa tianschanica ''Stipa'' is a genus of around 300 large perennial hermaphroditic grasses collectively known as feather grass, needle grass, and spear grass. They are placed in the subfamily Pooideae and the tribe Stipeae, which also contains many species ...

References

{{Taxonbar, from=Q2604245 Poaceae genera Pooideae