familyPoaceae
subfamilyPoaceae subfam. Chloridoideae
genusBouteloua
subgenusBouteloua subg. Chondrosum
speciesBouteloua barbata
Bouteloua barbata var. barbata
Common names: Sixweeks grama
Treatment appears in FNA Volume 25. Treatment on page 265.
Plants annual; not stoloniferous. Culms 1-35 cm, usually decumbent and geniculate, occasionally rooting at the lower nodes. Ligules 0.4-1 mm; blades 0.5-5 (9) cm long, 0.7-3 mm wide. Panicles 0.7-9 cm, with (2) 4-11 branches; branches 10-27 mm, scabrous, with 20-40 spikelets. 2n = 20.
Discussion
Bouteloua barbata var. barbata grows in loose sands, rocky slopes, and washes, often on disturbed soils, usually at elevations below 2000 m. Its range extends from the southwestern United States to northwestern Mexico.
Selected References
None.
Lower Taxa
None.
"decumbent" is not a number.
... more about "Bouteloua barbata var. barbata"
absent +
common +
absent +
bulliform +
absent +
membranous +
pubescent +
kranz +
absent +
absent +
well-developed +
arising +
close +
not fused +
membranous +
thick +
not pseudopetiolate +
adaxial +
racemose +
75 cm750 mm <br />0.75 m <br /> (?) +
persistent +
glabrous +
scabrous +
4;11 +
scabridulous +
spikelike +
not woody +
sometimes longer +
membranous +
single +
Sixweeks grama +
rooting +
annual +
climbing +
floating +
decumbent +
geniculate +
not woody +
staminate +
sterile +
reduced +
varying +
absent +
not waisted +
large +
hard +
capillary +
adjacent +
shorter +
3-veined +
sometimes longer +
2-veined +
rudimentary +
bisexual +
reduced +
absent +
1-veined +
shorter +
shorter or longer +
subtending +
glabrous +
scabridulous +
unequal +
dense +
long +
few +
coarse +
uncinate +
punctate +
Present +
pistillate +
distinct +
axillary +
elongate +
not absent +
distichous +
sometimes longer +
absent +
membranous +
3-awned +
rounded +
membranous +
absent +
inconspicuous +
usually shorter +
glabrous +
sterile +
pilose +
pubescent +
4-lobed +
adjacent +
stiff +
coarse +
absent +
simple +
glabrous +
keeled +
simple +
persistent +
separating +
free +
spikelike +
subtending +
evident +
elongate +
flabellate +
open +
closed +
glabrous +
imbricate +
dense +
well-developed +
attached +
appressed +
distal +
absent +
bisexual +
pectinate +
absent +
separate +
staminate +
Bouteloua barbata var. barbata +
Bouteloua barbata +
variety +
dioecious +
hyaline +
membranous +
dense +
excurrent +
absent +
perennial +
not stoloniferous +
annual +
synoecious +
various +