familyPoaceae
subfamilyPoaceae subfam. Panicoideae
genusDichanthelium
speciesDichanthelium portoricense
Dichanthelium portoricense subsp. portoricense
Treatment appears in FNA Volume 25. Treatment on page 442.
Culms 15-40 cm, glabrous or puberulent. Sheaths glabrous or puberulent; cauline blades 2-5 cm long, 2.5-4.5 mm wide, usually puberulent abaxially and glabrous adaxially. Primary panicles 2-4.5 cm. Spikelets 1.5-2.0 mm, puberulent to nearly glabrous.
Discussion
Dichanthelium portoricense subsp. portoricense is more common than subsp. patulum in coastal sand dunes. It also grows in sandy pinelands and savannahs. It resembles D. aciculare somewhat, but that species usually has ascending-pilose culms, strongly involute or acicular blades, and longer spikelets.
Selected References
None.
Lower Taxa
None.
"usually distinctly longer and narrower" is not a number."decumbent" is not a number.
... more about "Dichanthelium portoricense subsp. portoricense"
absent +
common +
absent +
bulliform +
absent +
membranous +
puberulent +
absent +
absent +
arising +
single +
winter +
well-differentiated +
cormlike +
subcordate +
hard +
thick +
congested +
fascicles +
purplish +
distinct +
adaxial +
wrinkled +
reduced +
firm +
rebranching +
flexuous +
reflexed;spreading +
absent +
puberulent +
scabridulous +
sterile +
spikelike +
absent +
sterile +
not developed +
absent +
longer +
papillose-based +
sometimes longer +
wiry +
purplish +
annual +
climbing +
floating +
herbaceous +
woody +
narrow +
Minn. +, Conn. +, N.J. +, N.Y. +, Wash. +, Ala. +, Mich. +, N.C. +, Pa. +, Puerto Rico +, S.C. +, W.Va. +, Ark. +, Iowa +, Kans. +, Mo. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Del. +, D.C +, Wis. +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Labr.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Pacific Islands (Hawaii) +, Md. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Fla. +, Wyo. +, Miss. +, Ariz. +, N.Mex. +, Tex. +, La. +, Ga. +, Tenn. +, Calif. +, Nev. +, Colo. +, Ill. +, Ind. +, Va. +, Idaho +, Ohio +, Utah +, Mont. +, Oreg. + and Ky. +
1/2 +
waisted +
large +
hard +
capillary +
germination +
adjacent +
sometimes longer +
well-developed +
absent +
reduced +
bisexual +
absent +
gaping +
shorter +
shorter or longer +
subtending +
unequal +
membranous +
equal +
absent +
lacking +
uncinate +
punctate +
Present +
axillary +
elongated +
absent +
distichous +
hyaline +
coriaceous +
true +
absent +
0.5 cm5 mm <br />0.005 m <br /> (?) +
membranous +
free +
absent +
inconspicuous +
glabrous +
cuneate +
fleshy +
branching +
staminate +
sterile +
reduced +
weakly-veined +
attached +
thin +
absent +
thin +
separated +
whitish +
scabridulous +
involute +
absent +
numerous +
absent +
glabrous +
keeled +
subterranean +
absent +
separating +
thin +
developing +
exserted +
chasmogamous +
evident +
cleistogamous +
reduced +
higher +
included +
small +
open +
closed +
much shorter +
complex +
bisexual +
unisexual +
sessile +
length +
attached +
absent +
varying +
simple +
convex +
Dichanthelium portoricense subsp. portoricense +
Dichanthelium portoricense +
subspecies +
hyaline +
membranous +
sessile +
bisexual +
ellipsoid +
plump +
5-11-veined +
not saccate +
slightly shorter +
absent +
subequal +
glabrous +
shiny +
chartaceous-indurate +
absent +
rhizomatous +
perennial +
herbaceous +
various +