Alopecurus geniculatus is a species of grass known by the common name water foxtail[2] or marsh foxtail.[3] It is native to much of Eurasia and introduced into North America, South America, and Australia. It grows in moist areas.[4][5][6][7]
Alopecurus geniculatus | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Poales |
Family: | Poaceae |
Subfamily: | Pooideae |
Genus: | Alopecurus |
Species: | A. geniculatus |
Binomial name | |
Alopecurus geniculatus L. 1753 not Lindh. ex Scheele 1849 nor Sibth. ex Steudel 1840 | |
Synonyms[1] | |
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Alopecurus geniculatus is a perennial grass forming bunches of erect stems up to about 60 cm (24 inches) in height. The leaves are up 12 cm (5 inches) in length. The pale green to purplish inflorescence is a dense panicle up to 6 or 7 cm long which blooms in dusty yellow-orange anthers.[8][9][10] reproduces sexually by seeds and can reproduce vegetatively by rooting at stem nodes.[2]
Alopecurus geniculatus is a component of purple moor grass and rush pastures a type of Biodiversity Action Plan habitat in the UK. It occurs on poorly drained neutral and acidic soils of the lowlands and upland fringe.
The grass has spread significantly in the United States since it was first introduced.[2]
State | First Observed |
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AK | 1940 |
AZ | 1941 |
AR | 1905 |
CA | 1900 |
CO | 1886 |
CT | 1900 |
DC | 1900 |
GA | 1929 |
ID | 1912 |
IL | 1860 |
IN | 1918 |
IA | 1894 |
KS | 1890 |
KY | 1900 |
LA | 1897 |
ME | 1893 |
MD | 1900 |
MA | 1874 |
MI | 1900 |
MN | 1900 |
MS | 1892 |
MT | 1884 |
NE | 1900 |
NV | 1978 |
NH | 1900 |
NJ | 1915 |
NM | 1904 |
NY | 1858 |
ND | 1915 |
OH | 1882 |
OK | 1896 |
OR | 1884 |
PA | 1900 |
RI | 1941 |
SD | 1900 |
TN | 1999 |
TX | 1899 |
UT | 1894 |
VT | 1921 |
WA | 1902 |
WV | 1900 |
WI | 1900 |
WY | 1888 |
Alopecurus geniculatus is known to hybridize with other members of the Alopecurus genus. Alopecurus x haussknechtianus is a hybrid between A. geniculatus and A. aequalis, Alopecurus x brachystylus is a hybrid between A. geniculatus and A. pratensis, Alopecurus x plettkei is s hybrid between A. geniculatus and A. bulbosus (Botanical Society of Britain and Ireland 2016)[2]
Taxon identifiers |
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