×elyhordeum stebbinsianum
Treatment appears in FNA Volume 24. Treatment on page 286.
Culms 60-80 cm. Blades 3-5 mm wide, abaxial surfaces smooth, adaxial surfaces scabridulous. Inflorescences spikelike, 10-16 cm, with 3 spikelets per node; internodes averaging 3.4 mm. Spikelets with 1-3 florets, the lateral spikelets sessile or pedicellate, pedicels to 3 mm. Glumes 0.5-1 mm wide, terminating in a 4-7 mm awn; lemmas glabrous to scabrous, awned, awns 5-11 mm; anthers indehiscent. 2n = unknown.
Distribution
Calif., Oreg., Wash.
Discussion
×Elyhordeum stebbinsianum consists of hybrids between Elymus glaucus and Hordeum brachy-antherum. Bowden (1958) reported that they appear to be completely sterile. They have been found at scattered locations in western North America.
Selected References
None.
Lower Taxa
None.
"decumbent" is not a number.
... more about "×elyhordeum stebbinsianum"
absent +
common +
absent +
bulliform +
absent +
scabridulous +
indehiscent +
hairy +
absent +
absent +
unbranched +
arising +
terminal +
single +
close +
free +
hard +
thick +
parallel +
not evident +
spikelike +
not branching +
annual +
climbing +
floating +
erect +
not woody +
sterile +
reduced +
1/3 +
capillary +
adjacent +
longer +
bisexual +
1-5-veined +
shorter than to longer than the adjacent florets +
subtending +
absent +
unequal +
equal +
uncinate +
punctate +
Present +
compound +
spikelike +
absent +
absent +
distichous +
5(7)-veined +
absent +
veined +
truncate +
inconspicuous +
lanceolate +
simple +
absent +
well-developed +
shorter +
slightly longer +
absent +
keeled +
subequal +
absent +
absent +
0-4 mm +
separating +
thin +
absent +
spikelike +
prolonged +
evident +
open +
closed +
full +
ebracteate +
spikelike +
mixed +
attached +
distinct +
parallel-sided +
not papillate +
×elyhordeum stebbinsianum +
×elyhordeum +
species +
hyaline +
membranous +
converging +
absent +
inconspicuous +
rhizomatous +
perennial +