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(First upload on November 17 2010. Last on October 24 2015) [ 日本語 | English ]

Echinochloa P. Beauv. (イヌビエ) Inubie (イヌビエ, 犬稗, s.l.), cockspur (cockspur grass) Lifeform: turfed, weedy annual grass Distribution: Originally in tropical Asia and Africa (ancient exotic to Japan) Habitat: disturbed areas, such as roadsides, ditches, and furrows of paddy fields Chromosome number: 2n = 54

Synonyms (discarded): Echinochloa crus-galli (L.) P.Beauv. var. caudata auct. non (Roshev.) Kitag. Echinochloa crus-galli (L.) P.Beauv. var. austrojaponensis Ohwi Varieties (diverse and confusing) var. aristata Gray (ケイヌビエ) f. kanashiroi Ohwi (ウスゲケイヌビエ) var. crus-galli (イヌビエ, s.s.) var. formosensis Ohwi (ヒメタイヌビエ), south to Kanto District var. praticola Ohwi (ヒメイヌビエ)

Echinochloa crus-galli in Hokkaido

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var. crus-galli

1 2 3
4 5 6
[1] at Shirogane Falls, Ofuyu Cape, on October 12 2010. [2/3] in front of the backgate of Hokkaido University of Education at Hakodate on September 20 2011. [4] at a roadside between Japanese archery training house and tennis courts, HU, on August 20 2015. [5/6] at a waste land, N20/W7, north Ward, Sapporo, on August 31 2012. Record: on a grassland in Fujimi Road Station, northern Hokkaido, on August 29 2018.; in a mesic waste land on N25/W3, North Ward, Sapporo, on August 31 2018. along a paved road in N12/W2, North Ward, Sapporo, on October 8 2020. On a sandbar along Kimonbetsu River close to JR Date-Monbetsu Station, Date City, southern Hokkaido, on October 8 2020. Fruiting near Faculty of Health Sciences, HU, on August 25 2022.

var. aristata

1 2
[1/2] at a garden by Sub-Ranger House, Toyotomi Town, on October 13 2010. Because this garden is frequently cut for keeping a lawn, the plants become shorter than usual.