Paspalum setaceum var. rigidifolium

(Nash) D.J. Banks
Common names: Stiff paspalum
Treatment appears in FNA Volume 25.

Plants erect to spreading. Leaves mostly cauline; blades to 30 cm long, 2.4-6.1 mm wide, conspicuously rigid, stiff, pubescent adaxially, glabrous or sparsely pubes¬cent abaxially, margins sometimes ciliate. Panicle branches 4.8-11.3 cm; branch axes 0.7-1.1 mm wide. Spikelets 2-2.6 mm long, 1.6-1.8 mm wide, obovate to ovate, pubescent, sometimes sparsely so; lower lemmas with or without an evident midvein; upper florets 2-2.4 mm.

Discussion

Paspalum setaceum var. rigidifolium grows on hammocks, sand barrens, high pinelands, and flatwoods of Georgia, Florida, and Cuba.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."elongated" is not a number.

anatomy +  and kranz +
Charles M. Allen +  and David W. Hall +
(Nash) D.J. Banks +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
sparsely +, glabrous +  and pubescent +
usually linear +  and lanceolate occasionally ovate +
2.4mm;6.1mm +
17 cm170 mm <br />0.17 m <br /> (?) +
0.7mm +  and 1.1mm +
ascending;spreading +
spikelike +
not developed +
ringlike +
elliptic +  and suborbicular +
sometimes longer +
Stiff paspalum +
branched +  and solid +
prostrate +, spreading +  and erect +
25 cm250 mm <br />0.25 m <br /> (110 cm1,100 mm <br />1.1 m <br />) +
Conn. +, N.J. +, N.Y. +, Va. +, Del. +, D.C. +, Wis. +, W.Va. +, Ont. +, Fla. +, N.H. +, N.Mex. +, Tex. +, La. +, Tenn. +, N.C. +, S.C. +, Pa. +, Mass. +, R.I. +, Vt. +, Puerto Rico +, Colo. +, Md. +, Ala. +, Ark. +, Ill. +, Ga. +, Ind. +, Iowa +, Ariz. +, Kans. +, Nebr. +, Okla. +, Ohio +, Mo. +, Minn. +, Mich. +, Mont. +, Miss. +, Ky. +  and S.Dak. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
uncinate +
bracteate +  and ebracteate +
solid +  and hollow +
coriaceous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
pubescent +  and glabrous +
2 +  and 1 +
4.8 cm48 mm <br />0.048 m <br /> (11.3 cm113 mm <br />0.113 m <br />) +
subterranean +
spreading +  and erect +
dry +  and fleshy +
pubescent +  and glabrous +
subsessile +  and shortly pedicellate +
imbricate +  and paired +
brown +  and stramineous +
0.2 cm2 mm <br />0.002 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
1 +  and 60 +
unisexual +  and bisexual +
obovate +  and ovate +
1.6mm +  and 1.8mm +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Gramineae +
Paspalum setaceum var. rigidifolium +
Paspalum setaceum +
variety +
membranous +
stipitate +  and sessile +
rounded +  and acute +
0.2 cm2 mm <br />0.002 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
glandular-pubescent +  and glabrous +
stramineous +  and dark-brown +
smooth +  and slightly rugose +
glandular-pubescent +  and glabrous +
smooth +  and slightly rugose +
aquatic +  and terrestrial +
erect +  and spreading +
dioecious +, monoecious +  and synoecious +