Polypogon monspeliensis
Polypogon elongatus
annual beard grass, annual rabbit's-foot grass, rabbit'sfootgrass, rabbitfoot beardgrass, rabbitfoot grass, rabbitfoot polypogon
southern beardgrass, streambank rabbitsfoot grass
5-65 (100) cm, erect to geniculately ascending.
to 100 cm, erect or decumbent at the base.
glabrous, the uppermost sheaths sometimes inflated;
ligules 2.5-16 mm;
blades 1-20 cm long, 1-7 mm wide.
smooth, glabrous;
ligules 4-8 mm, scabridulous, lacerate;
blades 10-30 cm long, 4-15 mm wide.
1-17 cm, narrowly ellipsoid, dense, sometimes lobed, greenish;
pedicels absent or to 0.2 mm;
stipes 0.1-0.2 mm.
10-30 cm, erect or nodding, interrupted, dense;
pedicels not developed;
stipes 1.5-2.5 mm.
1-2.7 mm, hispidulous throughout, largest prickles restricted to the lower 1/2, apices rounded, lobed, lobes 0.1-0.2 mm, 1/10 or less the length of the glume body, awned from the sinus, awns 4-10 mm, yellowish;
lemmas 0.5-1.5 mm, glabrous, awned, awns 0.5-1(4.5) mm;
paleas subequal to the lemmas;
anthers 0.2-1 mm.
3-5 mm, hispidulous, tapering from about midlength to the acute apices, apices unlobed, awned, awns 1-3 mm;
lemmas about 1.5 mm, awned, awns 1-2 mm, arising from above midlength;
paleas 1/2 - 2/3 as long as the lemmas;
anthers 0.5-0.7 mm.
= 14, 28, 35, 42.
= 28, 56.
Polypogon monspeliensis
Polypogon elongatus
Polypogon monspeliensis is native to southern Europe and Turkey. It is now a common weed throughout the world, including much of the Flora region. It grows in damp to wet, often alkaline soils, particularly in disturbed areas. Vernon Harms (pers. comm., 2005) commented that the species' distribution in Saskatchewan appears to have increased greatly since the 1970s. The English-language name aptly describes the feel of the young panicles.
In Europe, Polypogon monspeliensis hybridizes with Agrostis stolonifera, producing the sterile xAgropogon lutosus (p. 668); and with P. viridis, forming P. xadscendens Guss. ex Bertol. Only xAgropogon lutosus has been reported from the Flora region. It differs from P. monspeliensis in having more persistent spikelets, less blunt short-awned glumes, and lemmas with sub-terminal rather than terminal awns.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Polypogon elongatus is native from Mexico to Argentina. It now grows at scattered locations in the Flora region, primarily in California.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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