Panicum philadelphicum subsp. lithophilum

(Swallen) Freckmann & Lelong
Synonyms: Panicum lithophilum
Treatment appears in FNA Volume 25. Treatment on page 459.

Plants slender, sparsely pilose, purplish. Panicles with a few spikelets; pedicels short, appressed. Spikelets 2-2.1 mm, narrow, less than 1 mm wide. Upper glumes and lower lemmas acuminate; upper florets less than 1/2 as wide as long, blackish at maturity.

Discussion

Panicum philadelphicum subsp. lithophilum is endemic to wet depressions in granitic outcroppings of Georgia and North and South Carolina.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."-11-veined" is not declared as a valid unit of measurement for this property.

puberulent +
papillose +
anatomy +  and kranz +
Robert W. Freckmann +  and Michel G. Lelong +
(Swallen) Freckmann & Lelong +
1 (?) +  and 3 (?) +
keeled +  and rounded +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
truncate +  and subcordate +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
purplish +  and greenish +
3 cm30 mm <br />0.03 m <br /> (30 cm300 mm <br />0.3 m <br />) +
hirsute +  and sparsely pilose +
filiform +  and ovate flat +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
spikelike +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not developed +
terete +  and compressed +
thick-walled +
sometimes longer +
small green +
simple +  and profusely branched +
8 cm80 mm <br />0.08 m <br /> (100 cm1,000 mm <br />1 m <br />) +
erect +  and decumbent +
not compressed +
2 cm20 mm <br />0.02 m <br /> (300 cm3,000 mm <br />3 m <br />) +
woody +  and not succulent +
1 cm10 mm <br />0.01 m <br /> (?) +
Conn. +, N.J. +, N.Y. +, Del. +, D.C. +, Wis. +, W.Va. +, N.B. +, N.S. +, Ont. +, Que. +, Tex. +, N.C. +, S.C. +, Ark. +, Kans. +, Okla. +, Tenn. +, Pa. +, Va. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Ill. +, Ga. +, Ind. +, Iowa +, Md. +, Ohio +, Mo. +, Minn. +, Mich. +, Ky. +  and Ala. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
pubescent +  and glabrous +
tuberculate +
unequal +
membranous +
well-developed +
papillose-based +
purplish +, usually yellow-green +  and green +
uncinate +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Oval (?) +  and Round (?) +
bracteate +  and ebracteate +
hollow +  and solid +
coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
membranous +
inconspicuous +
truncate +  and acuminate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
7cm +  and 27cm +
subterranean +
1/4 +  and 1/3 +
pyramidal +
4 cm40 mm <br />0.04 m <br /> (24 cm240 mm <br />0.24 m <br />) +
simple +  and compound +
spreading +  and appressed +
hirsute +  and scabrous +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
dry +  and fleshy +
pilose +  and glabrous +
pilose +  and glabrous +
diverging;appressed +
usually longer +
in triplets +  and paired +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
unisexual +  and bisexual +
ellipsoid +  and lanceoloid +
0.2 cm2 mm <br />0.002 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
0mm +  and 1mm +
1 +  and 3 +
compound +  and simple +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Panicum lithophilum +
Panicum philadelphicum subsp. lithophilum +
Panicum philadelphicum +
subspecies +
membranous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (?) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
pubescent +  and glabrous +
rugose +  and verrucose +
chartaceous-indurate +  and rigid +
not prominent +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +