Panicum hirticaule subsp. stramineum

(Hitchc. & Chase) Freckmann & Lelong
Synonyms: Panicum stramineum
Treatment appears in FNA Volume 25. Treatment on page 462.

Culms 20-70 cm, robust, usually freely branching; nodes glabrous or sparsely hirsute, hairs papillose-based. Sheaths glabrous or sparsely hirsute, hairs papillose-based; blades 4-30 mm wide, glabrous or sparsely hirsute, hairs papillose-based, cordate, clasping basally. Panicles nodding. Spikelets 3.2-4 mm; lower paleas more than 1/2 as long as the upper florets. 2n = unknown.

Discussion

Panicum hirticaule subsp. stramineum grows in rich bottomlands in southern Arizona, New Mexico, and western Mexico.

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 +
ovoid to almost +  and acute +
acuminate +
anatomy +  and kranz +
Robert W. Freckmann +  and Michel G. Lelong +
(Hitchc. & Chase) Freckmann & Lelong +
1 (?) +  and 3 (?) +
keeled +  and rounded +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
rounded +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
3 cm30 mm <br />0.03 m <br /> (30 cm300 mm <br />0.3 m <br />) +
hirsute +  and glabrous +
filiform +  and ovate flat +
0.4 cm4 mm <br />0.004 m <br /> (3 cm30 mm <br />0.03 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 +
papillose-based +
sometimes longer +
small green +
erect +  and decumbent +
not compressed +
20 cm200 mm <br />0.2 m <br /> (70 cm700 mm <br />0.7 m <br />) +
woody +  and not succulent +
Okla. +, N.Mex. +, Tex. +, Nev. +, Calif. +, Wash. +  and Ariz. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
pubescent +  and glabrous +
tuberculate +
unequal +
membranous +
well-developed +
papillose-based +
cordate +
Oval (?) +  and Round (?) +
bracteate +  and ebracteate +
hollow +  and solid +
coriaceous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
membranous +
inconspicuous +
1/2 +  and 3/4 +
acuminate +, acute +, obtuse +  and truncate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
complex +  and simple +
concealed +  and prominent +
hirsute +  and glabrous +
2 +  and 1 +
9cm +  and 30cm +
subterranean +
partially included +  and well-exserted +
pyramidal +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
simple +  and compound +
0.9 cm9 mm <br />0.009 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
dry +  and fleshy +
divergent +, usually alternate +  and opposite +
inconspicuous +
hispid +  and glabrous +
hirsute +  and glabrous +
not compressed +
in triplets +  and paired +
reddish-brown +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 +  and 60 +
unisexual +  and bisexual +
spherical +  and ovoid to almost +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 +  and 3 +
compound +  and simple +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Panicum stramineum +
Panicum hirticaule subsp. stramineum +
Panicum hirticaule +
subspecies +
membranous +
stipitate +  and sessile +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
papillate +  and smooth +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
pubescent +  and glabrous +
rugose +  and verrucose +
chartaceous-indurate +  and rigid +
scabridulous +
aquatic +  and terrestrial +
hispid +  and glabrous +
dioecious +, monoecious +  and synoecious +