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This genus is accepted, and its native range is Subarctic & Subantarctic to Temp.
A specimen from Kew's Herbarium

[GB]

nonem

Morphology General Habit
Annual (4), or perennial (36). Rhizomes absent (37), or short (4), or elongated (2). Culms erect (30/32), or geniculately ascending (1/32), or decumbent (1/32); robust (2/5), or slender (3/5); 2-42.65-200 cm long; firm (38), or wiry (2). Culm-internodes elliptical in section (1/1). Lateral branches lacking (6/6). Ligule an eciliate membrane. Leaf-blades aciculate (1), or filiform (21), or linear (19); herbaceous (37), or coriaceous (4); stiff (13), or firm (26), or flaccid (1). Leaf-blade apex muticous (38), or pungent (4).
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; not deciduous as a whole, or deciduous as a whole (1); exserted (39), or embraced at base by subtending leaf (3), or enclosed (1). Panicle open (31), or contracted (11), or spiciform (2), or glomerate (1). Primary panicle branches not whorled (38), or whorled at lower nodes (1), or whorled at most nodes (1). Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform (11/11).
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets (1), or 2 fertile florets, or 3 fertile florets (7); without rhachilla extension (1), or with a barren rhachilla extension. Spikelets linear (1), or lanceolate (23), or elliptic (1), or oblong (24), or cuneate (5); laterally compressed; 2.075-5.477-11 mm long; breaking up at maturity; disarticulating below each fertile floret (31), or above glumes but not between florets (9). Rhachilla internodes glabrous (8), or pubescent (4), or pilose (27), or villous (1). Floret callus glabrous (2/37), or pubescent (6/37), or pilose (26/37), or bearded (5/37).
Fertile
Spikelets comprising 1 fertile florets (1), or 2 fertile florets, or 3 fertile florets (7); without rhachilla extension (1), or with a barren rhachilla extension. Spikelets linear (1), or lanceolate (23), or elliptic (1), or oblong (24), or cuneate (5); laterally compressed; 2.075-5.477-11 mm long; breaking up at maturity; disarticulating below each fertile floret (31), or above glumes but not between florets (9). Rhachilla internodes glabrous (8), or pubescent (4), or pilose (27), or villous (1). Floret callus glabrous (2/37), or pubescent (6/37), or pilose (26/37), or bearded (5/37).
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet (5), or reaching apex of florets (12), or exceeding apex of florets (27); thinner than fertile lemma (1), or similar to fertile lemma in texture (39); parallel to lemmas (35), or gaping (5). Lower glume linear (2), or lanceolate (32), or elliptic (4), or oblong (2), or ovate (5); 0.6-0.941-1 length of upper glume; membranous (39), or chartaceous (1); 1-keeled; 1 -veined (33), or 2 -veined (2), or 3 -veined (9). Lower glume lateral veins absent (33), or obscure (2), or distinct (7). Lower glume surface smooth (38), or asperulous (3). Lower glume apex entire (39), or erose (2); truncate (1), or obtuse (1), or acute (34), or acuminate (5); muticous (39), or mucronate (1). Upper glume linear (1), or lanceolate (8), or elliptic (29), or oblong (1), or ovate (2); 0.66-1.47-3 length of adjacent fertile lemma; membranous (39), or chartaceous (1); with undifferentiated margins (36), or hyaline margins (3), or scarious margins (1); 1-keeled; 1 -veined (7/39), or 2 -veined (5/39), or 3 -veined (37/39). Upper glume primary vein eciliate (39), or ciliolate (1). Upper glume surface smooth (38), or asperulous (5). Upper glume apex entire (39), or erose (2); truncate (1), or obtuse (1), or acute (34), or acuminate (5); muticous (39), or mucronate (1).
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate (1), or elliptic (2), or oblong (36), or ovate (6); hyaline (1), or membranous (36), or cartilaginous (3); of similar consistency above (37), or much thinner above (3); without keel; 3 -veined (2), or 4 -veined (10), or 5 -veined (30), or 6 -veined (2), or 7 -veined (4). Lemma lateral veins obscure (1/1). Lemma surface smooth (33), or asperulous (6), or scaberulous (4). Lemma apex entire (2), or erose (7), or dentate (36); 2 -fid (9/36), or 3 -fid (3/36), or 4 -fid (28/36), or 5 -fid (1/36); truncate (11/13), or obtuse (3/13); muticous (1), or mucronate (3), or awned (37); 1 -awned (36/37), or 3 -awned (1/37). Principal lemma awn subapical (3), or dorsal (38); straight (25), or geniculate (18). Palea 1 length of lemma; hyaline (2), or membranous (38); 2 -veined (5/5). Palea keels smooth (31), or scaberulous (9); eciliate (33), or puberulous (1), or ciliolate (5), or ciliate (1). Palea apex dentate (6/6).
Morphology Reproductive morphology Flowers
Lodicules 2 (38/38); membranous (38/38). Anthers 1-2 (2), or 3 (38). Ovary glabrous (36/36).
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; fusiform (3/5), or oblong (2/5). Hilum punctiform (30/31), or linear (1/31); 0.33-0.415-0.5 length of caryopsis.
Distribution
Europe (7), or Africa (7), or Temperate Asia (6), or Tropical Asia (5), or Australasia (6), or Pacific (2), or North America (6), or South America (17), or Antarctica (9).

[FTEA]

Gramineae, W. D. Clayton, S. M. Phillips And S. A. Renvoize. Flora of Tropical East Africa. 1974

Morphology General Habit
Caespitose perennials or rarely annuals
Morphology Leaves
Leaf-blades filiform to linear, flat, folded or rolled; ligule often elongated
Morphology Reproductive morphology Inflorescences
Inflorescence a spreading (or rarely contracted) panicle, with small shining spikelets
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets usually 2-flowered, the florets similar, hermaphrodite; rhachilla disarticulating below each floret, pilose or rarely glabrous, produced as a fine bristle; glumes subequal, mostly acute, keeled, subscarious to membranous with thin shining margins, the lower 1–3-nerved, the upper 3 (rarely 1)-nerved; lemmas lanceolate to oblong, shorter than the glumes or the upper with the tip exserted, scarious-membranous to thinly membranous, obscurely 4–5-nerved, 2-lobed, 4-toothed or lacerate-truncate at the apex, with a straight or geniculate awn from the back; callus minute, obtuse, usually bearded; palea about as long as the lemma, 2-keeled; stamens 3; stigmas 2.

[GB]

nonem

Morphology General Habit
Annual. Culms erect, or geniculately ascending; 7-30 cm long. Ligule an eciliate membrane. Leaf-blades filiform.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes single; bilateral. Rhachis semiterete. Spikelet packing broadside to rhachis. Rhachis internodes linear. Spikelets sunken; solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes collateral; persistent; exceeding apex of florets; firmer than fertile lemma. Lower glume linear; 1 length of upper glume; chartaceous; 1-keeled; 3 -veined. Lower glume lateral veins ribbed. Lower glume apex acute. Upper glume linear; 1.2 length of adjacent fertile lemma; chartaceous; 1-keeled; 3 -veined. Upper glume lateral veins ribbed. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; membranous; keeled; 3 -veined. Lemma apex dentate; 2 -fid; awned.
Morphology Reproductive morphology Flowers
Anthers 1. Ovary glabrous.
Distribution
North America.

Native to:

Afghanistan, Alaska, Albania, Alberta, Aleutian Is., Altay, Amur, Antarctica, Antipodean Is., Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Austria, Baltic States, Belarus, Belgium, Bolivia, British Columbia, Bulgaria, Buryatiya, California, Cameroon, Central European Rus, Chatham Is., Chile Central, Chile North, Chile South, China North-Central, China South-Central, Chita, Colombia, Colorado, Congo, Connecticut, Crozet Is., Czechoslovakia, Denmark, Dominican Republic, East European Russia, East Himalaya, Ecuador, Ethiopia, Falkland Is., Finland, France, Føroyar, Germany, Great Britain, Greece, Greenland, Gulf of Guinea Is., Hawaii, Heard-McDonald Is., Hungary, Iceland, Idaho, Illinois, Indiana, Inner Mongolia, Iran, Ireland, Irkutsk, Italy, Japan, Kamchatka, Kazakhstan, Kentucky, Kenya, Kerguelen, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Krym, Kuril Is., Labrador, Lesser Sunda Is., Macquarie Is., Madeira, Magadan, Maine, Manchuria, Manitoba, Maryland, Massachusetts, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southwest, Michigan, Minnesota, Mongolia, Montana, Morocco, Nepal, Netherlands, Nevada, New Brunswick, New Guinea, New Hampshire, New Jersey, New Mexico, New South Wales, New York, New Zealand North, New Zealand South, Newfoundland, North Carolina, North Caucasus, North Dakota, North European Russi, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Nunavut, Ohio, Ontario, Oregon, Pakistan, Pennsylvania, Peru, Poland, Portugal, Primorye, Prince Edward I., Qinghai, Québec, Rhode I., Romania, Rwanda, Sakhalin, Saskatchewan, Sicilia, South Carolina, South Dakota, South European Russi, South Georgia, South Sandwich Is., Spain, Svalbard, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tasmania, Tibet, Transcaucasus, Tristan da Cunha, Turkey, Turkey-in-Europe, Tuva, Uganda, Ukraine, Utah, Uzbekistan, Venezuela, Vermont, Victoria, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yugoslavia, Yukon, Zaïre

Introduced into:

Brazil South, Cape Provinces, Caroline Is., Lesotho, Society Is., South Australia

Deschampsia P.Beauv. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Wallich, N. [Cat. no. 8885], Nepal K001131773
Wallich, N. [Cat. no. 3802], Nepal K001117240
Wallich, N. [Cat. no. 3802], Nepal K001117239

First published in Ess. Agrostogr.: 91 (1812)

Accepted by

  • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

Literature

Flora of West Tropical Africa

  • Ess. Agrost. 91 (1812)
  • F.T.A. 10: 89 (1937).

Flora of Tropical East Africa

  • Ess. Agrost.: 91 (1812)

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0