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This genus is accepted, and its native range is Europe to Central Asia, Macaronesia ro Pakistan.

[GB]

nonem

Morphology General Habit
Annual. Culms erect (4), or geniculately ascending (4), or decumbent (1); slender (1/1); 10-36.5-100 cm long. Ligule an eciliate membrane.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open (2), or contracted (3). Primary panicle branches not whorled (4), or whorled at most nodes (1). Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate (3), or oblong (2); laterally compressed; 2-2.57-3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous (3), or pubescent (2).
Fertile
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate (3), or oblong (2); laterally compressed; 2-2.57-3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous (3), or pubescent (2).
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; exceeding apex of florets. Lower glume linear (1), or lanceolate (4); 0.7-0.805-1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute (2), or acuminate (3); muticous (2), or awned (3). Upper glume lanceolate (4), or ovate (1); 1-1.18-1.6 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute (2), or acuminate (3); muticous (2), or awned (3); 1 -awned (3/3).
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate (4), or ovate (1); membranous; without keel; 5 -veined. Lemma surface granulose (1), or scaberulous (3), or scabrous (1). Lemma apex acute; awned; 1 -awned. Principal lemma awn subapical; straight (3), or curved (1), or flexuous (2). Palea 0.75-0.8833-1 length of lemma; 2 -veined.
Morphology Reproductive morphology Flowers
Anthers 3.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; ellipsoid (2/2).
Distribution
Europe (2), or Africa (2), or Temperate Asia, or Australasia (1), or North America (2), or South America (1).

Doubtfully present in:

Portugal

Native to:

Afghanistan, Albania, Algeria, Austria, Belarus, Belgium, Bulgaria, Buryatiya, Canary Is., Central European Rus, Czechoslovakia, Denmark, East Aegean Is., East European Russia, Egypt, France, Germany, Great Britain, Greece, Hungary, Iran, Iraq, Irkutsk, Italy, Kazakhstan, Kirgizstan, Krasnoyarsk, Krym, Lebanon-Syria, Libya, Madeira, Mauritania, Morocco, Netherlands, North Caucasus, Northwest European R, Pakistan, Poland, Romania, Sardegna, South European Russi, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Ukraine, Uzbekistan, West Siberia, Yakutskiya, Yugoslavia

Introduced into:

Argentina Northwest, Argentina South, Arizona, Baltic States, British Columbia, California, Chile Central, Colorado, Connecticut, Corse, Delaware, District of Columbia, Finland, Hawaii, Idaho, Illinois, Indiana, Ireland, Kentucky, Khabarovsk, Maine, Maryland, Massachusetts, Michigan, Missouri, Montana, Nevada, New Jersey, New Mexico, New York, North European Russi, Norway, Ohio, Ontario, Oregon, Pennsylvania, Primorye, Sakhalin, South Dakota, Texas, Utah, Vermont, Victoria, Washington, Wisconsin, Wyoming

Apera Adans. appears in other Kew resources:

First published in Fam. Pl. 2: 495 (1763)

Accepted by

  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

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