Eriochloa villosa

(Thunb.) Kunth
Common names: Ériochloé velue
Introduced
Synonyms: Paspalum villosum
Treatment appears in FNA Volume 25. Treatment on page 509.

Plants annual. Culms 30-100 cm, erect or decumbent, sometimes rooting at the lower nodes; nodes and internodes pubescent. Sheaths sometimes inflated, glabrous or pubescent; ligules 0.5-1 mm; blades 10-20 cm long, 5-12 mm wide, flat, adaxial surfaces hairy. Panicles 3-16 cm long, 1-3 cm wide; rachises villous; branches 2-8, 20-70 mm long, 0.8-1.1 mm wide, velutinous, sometimes winged, with 11-24 solitary spikelets (occasionally paired proximally); pedicels 0.5-1 mm, densely villous below, often with long hairs intermixed with the short hairs, apices with more than 12 hairs of 1.5-2.5 mm. Spikelets 3.9-5.2 mm long, 2-2.5 mm wide, ovate to elliptic. Lower glumes occasionally present as a scale; upper glumes equaling the lower lemmas, ovate to elliptic, glabrous or pubescent, 7-veined; lower lemmas 3.4-5 mm long, 2-2.5 mm wide, 5-veined, acute to apiculate, unawned; lower paleas absent; anthers absent; upper lemmas 3.5-5 mm, ovate to elliptic, acute to apiculate. 2n = 54.

Distribution

Va., Colo., Calif., Minn., Wis., Kans., Nebr., Pa., Ill., Iowa, Miss., Fla., Mo., Oreg.

Discussion

Eriochloa villosa is a weedy species of eastern Asia that has been found at scattered locations in the Flora region.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."elongated" is not a number.

... more about "Eriochloa villosa"
anatomy +  and kranz +
Robert B. Shaw +, Robert D. Webster +  and Christine M. Bern +
(Thunb.) Kunth +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
usually linear +  and lanceolate occasionally ovate +
5mm;12mm +
20mm +  and 70mm +
spikelike +
0.8mm;1.1mm +
not developed +
terete +  and compressed +
sometimes longer +
Ériochloé velue +
decumbent +  and erect +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
well-developed +
Va. +, Colo. +, Calif. +, Minn. +, Wis. +, Kans. +, Nebr. +, Pa. +, Ill. +, Iowa +, Miss. +, Fla. +, Mo. +  and Oreg. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
uncinate +
bracteate +  and ebracteate +
solid +  and hollow +
cauline +  and basal +
coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
inconspicuous +
3.4mm +  and 5mm +
acute +  and apiculate +
2mm +  and 2.5mm +
complex +  and simple +
concealed +  and prominent +
2 +  and 5 +
2 +  and 1 +
3cm +  and 16cm +
subterranean +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
dry +  and fleshy +
elongate +
pubescent +  and glabrous +
inflated +
Introduced +
in triplets +  and paired +
0.39 cm3.9 mm <br />0.0039 m <br /> (0.52 cm5.2 mm <br />0.0052 m <br />) +
subterranean +
11 +  and 24 +
unisexual +  and bisexual +
ovate +  and elliptic +
2mm +  and 2.5mm +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
plumose +
dome--shaped +  and triangular +
Paspalum villosum +
Eriochloa villosa +
Eriochloa +
species +
membranous +
pubescent +  and glabrous +
ovate +  and elliptic +
ovate +  and elliptic acute +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not pronounced +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +