Alopecurus arundinaceus
Alopecurus myosuroides
creeping foxtail, creeping meadow-foxtail, vulpin roseau
blackgrass, slender meadow-foxtail
30-110 cm, erect.
(10)40-85 cm, erect.
3-10 cm long, 7-13 mm wide.
4-12 cm long, 3-7 mm wide.
3.6-5 mm, connate in the lower 1/5-1/3, membranous, sparsely pubescent, keels not winged, ciliate, apices acute, divergent, pale green to lead-gray;
lemmas 3.1-4.5 mm, connate in at least the lower 1/3, usually glabrous, sometimes with scattered hairs near the apices, apices truncate to obtuse, awns 1.5-7.5 mm, geniculate, exceeding the lemmas by 0-3 mm;
anthers 2.2-3.5 mm.
4.5-7.5 mm, connate in the lower 1/2, coriaceous, sides glabrous, keels winged, ciliate, scabrous distally, lateral veins ciliate or glabrous proximally, apices acute, convergent to parallel;
lemmas 4-7 mm, connate in the lower 1/3-1/2, glabrous, apices acute, awns to 12 mm, geniculate, exceeding the lemmas by 3-6 mm;
anthers 2.4-4.1 mm, yellow.
1.3-5 mm, truncate;
blades 6-40 cm long, 3-12 mm wide;
upper sheaths somewhat inflated.
2-6 mm, obtuse;
blades (2) 3.5-6 mm wide;
upper sheaths somewhat inflated.
= 26, 28, 30.
= 14, 28.
Alopecurus arundinaceus
Alopecurus myosuroides
Alopecurus arundinaceus is native to Eurasia, extending north of the Arctic Circle and south to the Mediterranean. It grows in wet, moderately acid to moderately alkaline soils, on flood plains, near vernal ponds, and along rivers, streams, bogs, potholes, and sloughs. It was introduced for pasture in North Dakota and now occurs more widely, having been promoted as a forage species. It is sometimes used in seed mixtures for revegetation projects. It was evaluated for revegetation in Alberta, but there is no evidence that it was ever actually used in that province. Alopecurus arundinaceus suppresses Hordeum jubatum, a troublesome, unpalatable, weedy species, in irrigated pastures (Moyer and Boswall 2002).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Alopecurus myosuroides is native to Eurasia, and grows in moist meadows, deciduous forests, and cultivated or disturbed ground. A significant weed species in temperate cereal crops, it is one of the most damaging weeds of winter cereals in England. It has been introduced repeatedly as a weed of cultivation into many parts of the Flora region, but apparently has not spread to a large degree outside of cultivation. Alopecurus myosuroides has been listed as a noxious weed in the state of Washington, one of the states where winter wheat is a major crop.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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- Encyclopedia of Life
- Wikipedia
- Google Image Search
