Hilaria swallenii

Cory
Common names: Swallen's curly mesquite
Treatment appears in FNA Volume 25. Treatment on page 278.

Plants perennial; stoloniferous. Culms 10-35 cm, erect; nodes villous. Sheaths slightly scabrous; ligules 2-2.2 mm; blades to 8 cm long, 1-2 mm wide, mostly basal, both surfaces scabrous, sometimes also sparsely pilose. Panicles 1-4 cm, with 2-8 fascicles; fascicles 6.5-8 mm. Lateral spikelets with 2 florets, lowest florets usually sterile, distal florets staminate; glumes unequal, thick, indurate, and conspicuously fused basally, mostly gray to dark-brown, evenly and sparsely to densely spotted with dark glands, awned from above midlength, margins hyaline; anthers 3, 3-3.5 mm. Central spikelets with 1 pistillate floret; lemmas elliptic basally, narrower and parallel-sided distally. 2n = 54, 72.

Discussion

Hilaria swallenii grows on dry plains and rocky mesas in New Mexico, Texas, and northern Mexico. It is considered better forage than H. belangeri, but it is less important because it is less common.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Hilaria swallenii"
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Mary E. Barkworth +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
straight +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
0 cm0 mm <br />0 m <br /> (8 cm80 mm <br />0.08 m <br />) +
pubescent +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
disarticulating +
spikelike +
reduced +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Swallen's curly mesquite +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 m <br />) +
not woody +
N.Mex. +  and Tex. +
not waisted +
capillary +
sometimes longer +
1 +  and 2 +
bisexual +  and sterile +
round +  and compressed +
reduced +
spotted +, mostly gray +  and dark-brown +
shorter or longer +
subtending +
unequal +
uncinate +
paniculate +  and racemose +
hollow +  and solid +
not absent +
parallel-sided +
unawned +  and awned +
membranous +
narrower +
sometimes longer +
ciliate +  and lacerate +
0.2 cm2 mm <br />0.002 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
membranous +
inconspicuous +
pilose +  and glabrous +
pilose +  and villous +
concealed +  and prominent +
2 +  and 1 +
spikelike +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
dry +  and fleshy +
spikelike +
pilose +  and glabrous +
rhizomatous +  and stoloniferous +
compressed +
1 +  and 3 +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Hilaria swallenii +
species +
membranous +
7 (?) +  and 13 (?) +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +