familyPoaceae
subfamilyPoaceae subfam. Panicoideae
genusPanicum
subgenusPanicum subg. Agrostoidea
sectionPanicum sect. Agrostoidea
speciesPanicum rigidulum
subspeciesPanicum rigidulum subsp. rigidulum
Panicum rigidulum subsp. rigidulum
Synonyms: Panicum condensum Panicum agrostoides var. ramosius Panicum agrostoides var. condensum Panicum agrostoides
Treatment appears in FNA Volume 25. Treatment on page 478.
Revision as of 04:08, 30 July 2020 by imported>Volume Importer
Culms 40-150 cm, rather robust. Sheaths with the throat usually glabrous or sparsely pilose on the sides; ligules 0.3-1 mm, membranous; blades usually 5-12 mm wide, flat, mostly glabrous or scabridulous, bases about equal in width to the subtending sheaths. Panicles terminal and axillary, usually with many spikelets. Spikelets 1.6-2.5 mm long, usually over 0.6 mm wide, crowded, green or purplish-tinged, pedicellate, pedicels short, with 1-several slender hairs near the apices.
Discussion
Panicum rigidulum subsp. rigidulum is the most common, most variable, and widest ranging of the five subspecies.
Selected References
None.
Lower Taxa
None.
"decumbent" is not a number."thickish" is not a number."varying" is not a number.
... more about "Panicum rigidulum subsp. rigidulum"
absent +
common +
absent +
bulliform +
absent +
membranous +
pilose +
gaping +
apiculate +
puberulent +
absent +
absent +
arising +
single +
sulcate +
cormlike +
membranous +
equal +
separated +
adaxial +
glabrous +
scabridulous +
simple +
absent +
sterile +
spikelike +
narrow +
absent +
sterile +
not developed +
absent +
isodiametric +
2;3 +
centrifugal +
sometimes longer +
fimbriate +
small green +
annual +
robust +
stout +
climbing +
floating +
decumbent +
herbaceous +
compressed +
narrow +
Conn. +, N.J. +, N.Y. +, W.Va. +, Del. +, D.C. +, Wis. +, B.C. +, N.S. +, Ont. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Fla. +, Ala. +, Kans. +, Ky. +, La. +, Mo. +, Okla. +, Pa. +, Tenn. +, Tex. +, Va. +, Puerto Rico +, N.C. +, S.C. +, Md. +, Calif. +, Miss. +, Ark. +, Ill. +, Ga. +, Ind. +, Mich. +, Ohio + and Oreg. +
1/2 +
waisted +
large +
hard +
capillary +
germination +
adjacent +
sometimes longer +
well-developed +
absent +
reduced +
bisexual +
plump +
absent +
apart +
herbaceous +
shorter +
longer +
spreading +
subtending +
tuberculate +
unequal +
membranous +
equal +
well-developed +
prickly +
lacking +
uncinate +
punctate +
axillary +
elongated +
spongy +
absent +
distichous +
cauline +
hyaline +
coriaceous +
absent +
membranous +
free +
absent +
inconspicuous +
glabrous +
cuneate +
fleshy +
staminate +
sterile +
reduced +
3-veined +
minute +
hyaline +
absent +
small +
not thickened +
separated +
hyaline +
involute +
absent +
scabridulous +
keeled +
absent +
glabrous +
clasping +
keeled +
contracted +
dense +
subterranean +
axillary +
absent +
secund +
crowded +
appressed +
separating +
thin +
evident +
winter +
lunate +
absent +
higher +
kranz +
anatomy +
closed +
1;several +
complex +
bisexual +
unisexual +
pedicellate +
crowded +
length +
attached +
appressed +
absent +
glabrous +
many +
lanceolate +
equaling +
wide +
glabrous +
scabridulous +
Panicum rigidulum subsp. rigidulum +
Panicum rigidulum +
subspecies +
hyaline +
membranous +
scabridulous +
stipitate +
lustrous +
bisexual +
variable +
5-veined +
much longer +
absent +
keeled +
subequal +
shorter to much +
stiff +
shiny +
thick +
5-veined +
keeled +
subequal +
rugose +
absent +
not rhizomatous +
purple-tinged +
perennial +
herbaceous +
glabrous +
variable +