familyPoaceae
subfamilyPoaceae subfam. Panicoideae
tribePoaceae tribe Andropogoneae
genusMiscanthus
speciesMiscanthus oligostachyus

Miscanthus oligostachyus

Stapf
Mary E. Barkworth
Common names: Small japanese silvergrass
Treatment appears in FNA Volume 25. Treatment on page 618.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché, Linda A. Vorobik

Copyright: Utah State University

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.

... more about "Miscanthus oligostachyus"
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2n chromosome quantity
38 +
Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Adaxial cell presence
absent +
Adaxial cell shape
bulliform +
Adaxial ligule architecture or pubescence or shape
ciliate +
Adaxial ligule presence
absent +
Adaxial ligule texture
membranous +
Adaxial surface pubescence
pilose +
Anther quantity
3 +  and 2 +
Anther some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Arm cell presence
absent +
Arm cell quantity
anatomy +  and kranz +
Auricle presence
absent +
Author
Mary E. Barkworth +
Authority
Stapf +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn orientation
arising +
Awn quantity
single +
Back shape
keeled +  and rounded +
Base architecture
pseudopetiolate +  and branching +
Base arrangement
divergent +  and parallel +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
hard +
Base width
thick +
Blade architecture
pseudopetiolate +
Blade architecture or arrangement
non-radiate +  and radiate +
Blade development
well-developed +
Blade length
8 cm80 mm <br />0.08 m <br /> (35 cm350 mm <br />0.35 m <br />) +
Blade position
adaxial +
Blade prominence or shape
flat +
Blade shape
usually linear +  and lanceolate occasionally ovate +
Blade size
reduced +
Blade width
0.6 cm6 mm <br />0.006 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Branch axis condition
intact +
Branch orientation
erect;suberect +
Branch pubescence
pilose +
Branch quantity
2;5 +
Branch shape
spikelike +
Branch some measurement
7 cm70 mm <br />0.07 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Bundle sheath quantity
single +
Callus hair coloration
white +
Callus hair pubescence
silky +
Callus hair quantity
1/2 +
Callus height or length or size
short +
Callus pubescence
pilose +
Callus shape
blunt +
Caryopsis architecture or shape
cleft +
Caryopsis presence
absent +
Common name
Small japanese silvergrass +
Culm architecture
branched +
Culm architecture or arrangement or growth form
solitary +
Culm coloration
purple +  and reddish +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm growth form or orientation
decumbent +
Culm height
80 cm800 mm <br />0.8 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
Culm orientation
erect +
Culm quantity
Few (?) +
Culm some measurement
40 cm400 mm <br />0.4 m <br /> (400 cm4,000 mm <br />4 m <br />) +
Culm texture
not woody +
Culm thickness
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Distal cell length or size
long +
Distal cell size or width
narrow +
Distribution
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. +
Embryo shape
waisted +
Embryo size
large +
Endosperm texture
hard +
Filament shape
capillary +
Floret architecture
sessile +
Floret arrangement
adjacent +
Floret atypical quantity
2 +  and 4 +
Floret length or size
sometimes longer +
Floret palea development
well-developed +
Floret palea presence
absent +
Floret palea size
reduced +
Floret position
concealing +
Floret quantity
2 +
Floret reproduction
bisexual +
Floret shape
compressed +  and terete +
Fusoid cell presence
absent +
Glume architecture or shape
awned +
Glume height or length or size
shorter +
Glume length or size
shorter or longer +
Glume position
subtending +
Glume position relational
exceeding +
Glume quantity
2 +
Glume shape
compressed +  and rounded +
Glume size
unequal +
Glume texture
membranous +  and coriaceous +
Glume variability
equal +
Hair architecture or shape
awned +
Hair coloration
purplish-white +  and white +
Hair quantity
lacking +
Hair shape
uncinate +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Linda A. Vorobik +  and Cindy Roché +
Inflorescence architecture
bracteate +  and ebracteate +
Inflorescence branch architecture
pedunculate +  and multiple-stalked +
Inflorescence branch arrangement
cluster +
Inflorescence nutrition
photosynthetic +
Inflorescence position
axillary +  and subtending +
Inflorescence position or structure subtype
terminal +
Inflorescence shape
ovoid +
Inflorescence unit nutrition
photosynthetic +
Inflorescence unit position
subtending +
Internode architecture
solid +  and hollow +
Internode length
elongated +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf development
modified +
Leaf margin arrangement
Overlapping (?) +
Leaf nutrition
photosynthetic +
Leaf odor
not aromatic +
Lemma architecture or shape
awned +
Lemma awn architecture
twisted +
Lemma awn atypical some measurement
4 +
Lemma awn some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Lemma coloration
hyaline +
Lemma texture
coriaceous +
Ligule architecture or pubescence or shape
ciliate +
Ligule architecture or shape
truncate +
Ligule presence
absent +
Ligule shape
rounded +
Ligule some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Ligule texture
membranous +
Lodicule fusion
free +
Lodicule presence
absent +
Lodicule prominence
inconspicuous +
Lodicule pubescence
glabrous +
Lodicule quantity
2 +
Lodicule shape
cuneate +
Lodicule texture
fleshy +
Longer pedicel architecture
sulcate +
Longer pedicel some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Lower floret architecture
staminate +
Lower floret reproduction
sterile +
Lower floret size
reduced +
Lower glume pubescence
pilose +
Lower glume shape
2-toothed +  and 2-keeled +
Lower glume some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Lower glume variability
equaling +
Microhair presence
absent +
Midrib architecture
complex +  and simple +
Next floret architecture
sessile +
Node prominence
concealed +  and prominent +
Node pubescence
pubescent +
Number of lower taxa
0 +
Other quantity
1 +
Ovary presence
absent +
Ovary pubescence
glabrous +
Pair; pair spikelet architecture
homomorphic +
Pair; pair spikelet reproduction
homogamous +
Pair architecture
pedicellate +
Palea shape
keeled +
Panicle architecture or fragility
loose +
Panicle arrangement
corymbose +
Panicle position
long-exserted +
Papilla presence
absent +
Pedicel architecture
pedicellate +
Pedicel fusion
free +
Pedicel presence
absent +
Pedicel quantity
1 +
Pedicel size
reduced +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp texture
dry +  and fleshy +
Rachis fixation
attached +
Rachis prominence
evident +
Rachis shape
elongate +
Reference
None +
Scale coloration
hyaline +
Secondary position
higher +
Sheath architecture
open +
Sheath condition
closed +
Sheath pubescence
pilose +  and glabrous +
Shorter pedicel some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Side quantity
1 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25 1517.xml +
Spike architecture
complex +
Spike arrangement
bisexual +
Spike reproduction
unisexual +
Spikelet architecture
homomorphic +  and pedicellate +
Spikelet arrangement
in triplets +  and paired +
Spikelet character
length +
Spikelet fixation
attached +
Spikelet presence
absent +
Spikelet quantity
2 +  and 1 +
Spikelet reproduction
homogamous +
Spikelet size
usually smaller +  and reduced +
Spikelet some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Spikelet variability
equaling +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
simple +
Style-branch arrangement
close +
Style-branch atypical quantity
4 +  and 1 +
Style-branch fusion
fused +  and free +
Style-branch quantity
2 (?) +
Style quantity
2 +  and 3 +
Subsidiary-cell shape
dome--shaped +  and triangular +
Synonyms
Gramineae +
Taxon family
Poaceae +
Taxon name
Miscanthus oligostachyus +
Taxon parent
Miscanthus +
Taxon rank
species +
Tissue coloration
hyaline +
Tissue texture
membranous +
Tooth architecture or pubescence or shape
white-ciliate +
Triplet architecture
sessile-pedicellate +
Triplet reproduction
heterogamous +
Upper floret architecture
pistillate +
Upper floret reproduction
bisexual +
Upper glume architecture
3-5-veined +
Upper lemma architecture or shape
awned +  and entire +
Upper lemma shape
bidentate +
Vein presence
absent +
Vein prominence
raised +
Vein quantity
2 (?) +
Vein size
major +
Volume
Volume 25 +
Whole organism architecture
rhizomatous +
Whole organism arrangement or pubescence
tufted +
Whole organism duration
perennial +
Whole organism growth form
plant +  and cespitose +
Whole organism growth form or habitat
aquatic +  and terrestrial +
Whole organism growth form or texture
herbaceous +
Whole organism reproduction
dioecious +, monoecious +  and synoecious +
Whole organism variability
varied +
X chromosome atypical quantity
14 +, 12 +  and 7 +
X chromosome quantity
19 +