familyPoaceae
subfamilyPoaceae subfam. Panicoideae
genusPanicum
subgenusPanicum subg. Agrostoidea
sectionPanicum sect. Agrostoidea
speciesPanicum rigidulum
subspeciesPanicum rigidulum subsp. elongatum
Panicum rigidulum subsp. elongatum
Synonyms: Panicum stipitatum
Treatment appears in FNA Volume 25. Treatment on page 478.
Plants similar to subsp. rigidulum, but more conspicuously purple-tinged throughout, especially the panicles. 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 relatively narrow; branches few, stiffly ascending. Spikelets 2.4-3 mm long, usually less than 0.6 mm wide, conspicuously stipitate, purple, often falcate, subsecund along the branchlets. Upper florets stipitate, stipes to 0.4 mm, slender.
Discussion
Panicum rigidulum subsp. elongatum is most common in the piedmont and mountain regions of the eastern United States.
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. elongatum"
absent +
common +
absent +
bulliform +
absent +
membranous +
pilose +
gaping +
apiculate +
puberulent +
absent +
absent +
arising +
single +
sulcate +
cormlike +
membranous +
equal +
separated +
adaxial +
glabrous +
scabridulous +
simple +
ascending +
absent +
few +
sterile +
spikelike +
narrow +
absent +
sterile +
not developed +
absent +
isodiametric +
2;3 +
centrifugal +
sometimes longer +
fimbriate +
small green +
annual +
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 +
Present +
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 +
narrow +
absent +
secund +
crowded +
appressed +
separating +
thin +
evident +
winter +
lunate +
absent +
higher +
kranz +
anatomy +
closed +
1;several +
complex +
bisexual +
unisexual +
stipitate +
subsecund +
length +
attached +
appressed +
absent +
glabrous +
many +
falcate +
equaling +
slender +
glabrous +
scabridulous +
Panicum rigidulum subsp. elongatum +
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 +