Bouteloua curtipendula var. caespitosa

Gould & Kapadia
Treatment appears in FNA Volume 25. Treatment on page 254.

Plants cespitose, often with a knotty base, not or shortly rhizomatous. Culms in large or small clumps, stiffly erect. Blades usually narrow, but at least some over 2.5 mm wide. Panicles with 12-80 branches, averaging 2-7 spikelets per branch. Glumes and lemmas bronze or stramineous to green, or various shades of purple; anthers usually yellow or orange, occasionally red or purple. 2n = 58-103.

Distribution

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

Discussion

Bouteloua curtipendula var. caespitosa grows on loose, sandy or rocky, well drained limestone soils at 200-2500 m in the southwestern United States, Mexico, and South America. It frequently grows, and may hybridize, with B. warnockii.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

purple +, red +, orange +  and yellow +
1 +  and 3 +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
J.K. Wipff +
Gould & Kapadia +
1 (?) +  and 3 (?) +
unequally-developed +
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 /> (30 cm300 mm <br />0.3 m <br />) +
folded +  and flat +
subdigitate +  and digitate +
5 cm50 mm <br />0.05 m <br /> (?) +
spikelike +
not woody +
triangular +  and dome--shaped +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
sometimes longer +
membranous +
Small (?) +  and Large (?) +
small +  and large +
8 cm80 mm <br />0.08 m <br /> (80 cm800 mm <br />0.8 m <br />) +
not woody +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Okla. +, N.Mex. +, Tex. +, Utah +, Calif. +, Colo. +  and Ariz. +
not waisted +
capillary +
pistillate +  and staminate +
4-lobed +  and trilobed +
sometimes longer +
rudimentary +
1 +  and 2 +
sterile +  and bisexual +
round +  and compressed +
reduced +
stramineous +  and green +
shorter or longer +
subtending +
scabrous +  and glabrous +
both +  and 1 +
acuminate +  and acute +
unequal +
papillose-based +
uncinate +
paniculate +  and racemose +
hollow +  and solid +
not absent +
distributed +
5-veined +, 7-13-veined +  and 1-3-veined +
stramineous +  and green +
sometimes longer +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
membranous +
inconspicuous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
scabrous-strigose +  and glabrous +
3-lobed +  and acute +
0.3 cm3 mm <br />0.003 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
concealed +  and prominent +
2 +  and 1 +
3 +  and no +
13 cm130 mm <br />0.13 m <br /> (30 cm300 mm <br />0.3 m <br />) +
dry +  and fleshy +
spikelike +
elongate +
flabellate +
sessile +  and subsessile +
terete +, compressed +  and pectinate +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Bouteloua curtipendula var. caespitosa +
Bouteloua curtipendula +
variety +
membranous +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
7 +  and 13 +
extended +
0 cm0 mm <br />0 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
plant +  and cespitose +
aquatic +  and terrestrial +