Scleropogon brevifolius

Phil.
Common names: Burrograss
Treatment appears in FNA Volume 25. Treatment on page 44.

Stolons to 50 cm, wiry, internodes 5-15 cm. Culms (5) 10-20 cm, erect. Ligules about 1 mm; blades 2-8 (12) cm long, 1-2 mm wide. Bisexual spikelets 2-4 cm, staminate florets below the pistillate florets. Staminate spikelets 2-3 cm. Pistillate spikelets subtended by a glumelike bract; lemma bodies 2.5-3 cm. 2n = 40.

Distribution

Okla., N.Mex., Tex., Utah, Calif., Colo., Ariz., Nev.

Discussion

Scleropogon brevifolius grows on grassy plains and flats, generally being most abundant on disturbed or overgrazed land. Its North American range extends form the southwestern United States to central Mexico; its South American range is from Chile to northwestern Argentina.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Scleropogon brevifolius"
1 +  and 3 +
Mary E. Barkworth +
1 (?) +  and 3 (?) +
30 cm300 mm <br />0.3 m <br /> (?) +
reflexed +  and spreading +
multiple +, , +  and single +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
pubescent +  and glabrous +
folded +  and flat +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
not pectinate +
sharp-pointed +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Burrograss +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
not woody +
Okla. +, N.Mex. +, Tex. +, Utah +, Calif. +, Colo. +, Ariz. +  and Nev. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
5 +  and 10 +
round +  and compressed +
reduced +
3-veined +  and 1-3-veined +
shorter or longer +
subtending +
acuminate +
membranous +
uncinate +
paniculate +  and racemose +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
not absent +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
sometimes longer +
1 cm10 mm <br />0.01 m <br /> (?) +
inconspicuous +
concealed +  and prominent +
2 +  and 1 +
dry +  and fleshy +
spikelike +
pistillate +  and staminate +
compressed +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 +  and 3 +
compound +  and simple +
0 cm0 mm <br />0 m <br /> (50 cm500 mm <br />0.5 m <br />) +
2 (?) +  and 3 (?) +
Gramineae +
Scleropogon brevifolius +
Scleropogon +
species +
membranous +
7 (?) +  and 13 (?) +
aquatic +  and terrestrial +
synoecious +, dioecious +  and monoecious +