Pennisetum alopecuroides

(L.) Spreng.
Common names: Foxtail fountaingrass
Introduced
Treatment appears in FNA Volume 25.

Plants perennial; cespitose. Culms 30-100 cm, erect; nodes glabrous. Sheaths glabrous, margins ciliate; ligules 0.2-0.5 mm, membranous, ciliate; blades (10) 30-60 cm long, 2-8 (12) mm wide, flat to folded, glabrous, margins ciliate basally. Panicles all terminal, 6-20 cm long, 20-53 mm wide, fully exerted from the sheaths, erect, green to brown, deep purple, or stramineous to creamy-white; rachises terete, with pubescent hairs. Fascicles 9-16 per cm; fascicle axes 1.5-5.6 mm, with a stipelike base of 1-5.6 mm and 1 (2) spikelet (s); outer bristles 13-19, 0.8-15.6 mm; inner bristles 7-10, 11.2-30 mm, scabrous; primary bristles 26.7-35 mm, scabrous, usually not noticeably longer than the other bristles. Spikelets 5.5-8.4 mm, sessile or subsessile, glabrous; pedicels to 0.1 mm; lower glumes 0.2-1.4 mm, veinless; upper glumes 2-4.9 mm, to 1/2 as long as the spikelet, 1-5-veined, acute to broadly acute; lower florets sterile; lower lemmas 4.9-8.1 mm, 7-9 (10) -veined; lower paleas absent; upper lemmas 5.2-7.6 mm, 5-7-veined, acuminate; anthers 3, 3-4.5 mm. 2n = 18.

Distribution

Pa., Ohio, N.C., N.Y., Ark., Ill.

Discussion

Pennisetum alopecuroides is native to southeast Asia. It is frequently grown as an ornamental in the Flora region.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Pennisetum alopecuroides"
3 cm30 mm <br />0.03 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
anatomy +  and kranz +
J.K. Wipff +
(L.) Spreng. +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
stipelike +
swelling +
membranous +
pseudopetiolate +
non-radiate +  and radiate +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
flat +  and folded +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
spikelike +
reduced +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
disarticulating +
fused +  and free +
not developed +
terete +  and compressed +
sometimes longer +
Foxtail fountaingrass +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
not woody +
Pa. +, Ohio +, N.C. +, N.Y. +, Ark. +  and Ill. +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.56 cm5.6 mm <br />0.0056 m <br />) +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
uncinate +
bracteate +  and ebracteate +
1.12 cm11.2 mm <br />0.0112 m <br /> (3 cm30 mm <br />0.03 m <br />) +
usually flatter and wider +
hollow +  and solid +
cauline +  and basal +
coriaceous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
inconspicuous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
0.49 cm4.9 mm <br />0.0049 m <br /> (0.81 cm8.1 mm <br />0.0081 m <br />) +
complex +  and simple +
concealed +  and prominent +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (1.56 cm15.6 mm <br />0.0156 m <br />) +
green +  and brown deep purple or stramineous +
6cm +  and 20cm +
subterranean +
1 +  and many +
2 cm20 mm <br />0.02 m <br /> (5.3 cm53 mm <br />0.053 m <br />) +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
dry +  and fleshy +
usually not noticeably longer +
long-ciliate +  and scabrous +
2.67 cm26.7 mm <br />0.0267 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Introduced +
subsessile +  and sessile +
in triplets +  and paired +
unisexual +  and bisexual +
compressed +  and terete +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.84 cm8.4 mm <br />0.0084 m <br />) +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Pennisetum alopecuroides +
Pennisetum +
species +
membranous +
acute +  and broadly acute +
0.2 cm2 mm <br />0.002 m <br /> (0.49 cm4.9 mm <br />0.0049 m <br />) +
0.52 cm5.2 mm <br />0.0052 m <br /> (0.76 cm7.6 mm <br />0.0076 m <br />) +
membranous +  and coriaceous +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +
9 +, 8 +, 7 +  and 5 +