Miscanthus oligostachyus

Stapf
Common names: Small japanese silvergrass
Treatment appears in FNA Volume 25. Treatment on page 618.

Plants cespitose, rhizomatous. Culms 80-150 cm tall, 2-3 mm thick below, few together or solitary; nodes finely pubescent. Sheaths mostly glabrous, pilose near the summits; ligules 2-3 mm, rounded; blades well-developed only on the cauline sheaths, 8-35 cm long, 6-25 mm wide, adaxial surfaces densely pilose basally. Panicles long-exserted, loose, with 2-5 erect to suberect branches; branches 7-15 cm, densely pilose, with white or purplish-white hairs. Shorter pedicels 1.5-2 mm; longer pedicels 5-6 mm, sulcate on 1 side. Spikelets 6-8 mm; callus hairs from 1/2 as long as to equaling the spikelets, silky, white. Lower glumes 6-8 mm, sparsely pilose, 2-keeled above, 2-toothed, teeth densely white-ciliate; upper glumes equaling the lower glumes, 3-5-veined; awns of upper lemmas (4) 8-15 mm, twisted at the bases; anthers 2.5-3 mm. 2n = 38.

Discussion

Miscanthus oligostachyus is a native of Japanese and Korean forests that is sold as an ornamental species in the United States. It does best in regions with cool summers. Koyama (1987) recognized three subspecies of M. oligostachyus; they have not been evaluated for this treatment.

Selected References

None.

Lower Taxa

None.

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

... more about "Miscanthus oligostachyus"
3 +  and 2 +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
anatomy +  and kranz +
Mary E. Barkworth +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
pseudopetiolate +
non-radiate +  and radiate +
well-developed +
8 cm80 mm <br />0.08 m <br /> (35 cm350 mm <br />0.35 m <br />) +
usually linear +  and lanceolate occasionally ovate +
reduced +
6mm;25mm +
erect;suberect +
spikelike +
Small japanese silvergrass +
purple +  and reddish +
80 cm800 mm <br />0.8 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
40 cm400 mm <br />0.4 m <br /> (400 cm4,000 mm <br />4 m <br />) +
not woody +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Conn. +, N.J. +, N.Y. +, W.Va. +, Del. +, D.C +, Wis. +, Ont. +, Que. +, Mass. +, Maine +, R.I. +, Fla. +, La. +, Nebr. +, Tenn. +, N.C. +, S.C. +, Pa. +, Va. +, Colo. +, Calif. +, Ala. +, Ark. +, Ill. +, Ga. +, Iowa +, Md. +, Ohio +, Mo. +, Minn. +, Mich. +, Miss. +  and Ky. +
capillary +
sometimes longer +
concealing +
compressed +  and terete +
shorter or longer +
subtending +
compressed +  and rounded +
unequal +
membranous +  and coriaceous +
purplish-white +  and white +
uncinate +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
axillary +  and subtending +
solid +  and hollow +
photosynthetic +
not aromatic +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
coriaceous +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +
inconspicuous +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
2-toothed +  and 2-keeled +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
complex +  and simple +
concealed +  and prominent +
pedicellate +
long-exserted +
dry +  and fleshy +
elongate +
pilose +  and glabrous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
homomorphic +  and pedicellate +
in triplets +  and paired +
usually smaller +  and reduced +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Gramineae +
Miscanthus oligostachyus +
Miscanthus +
species +
membranous +
sessile-pedicellate +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +