Ptilagrostis kingii
Common names: King's ptilagrostis Sierra ptilagrostis
Endemic
Synonyms: Oryzopsis kingii
Treatment appears in FNA Volume 24. Treatment on page 143.
Culms 15-38 cm tall, 0.4-0.8 mm thick. Basal ligules 1-2 mm, acute; upper ligules to 2.5 mm; blades filiform, about 0.3 mm in diameter. Panicles 6-10 cm, loosely contracted; branches ascending to appressed. Glumes 3-4.5 mm; florets 2.8-4.2 mm; calluses 0.3-0.7 mm; lemmas with 0.1-0.4 mm lobes; awns 10-14 mm, scabridulous, not hairy, weakly once or twice-geniculate; anthers 0.5-1.5 mm, penicillate. Caryopses 1.5-2.3 mm. 2n = 11.
Discussion
Ptilagrostis kingii grows along damp streambanks and wet meadows of the Sierra Nevada, at elevations from 2700-3500 m. It differs from most species in the genus in its scabridulous, rather than plumose, awns and short lemma lobes.
Selected References
None.
Lower Taxa
None.
"decumbent" is not a number."prolonged" is not a number.
... more about "Ptilagrostis kingii"
absent +
common +
absent +
bulliform +
absent +
penicillate +
stiff +
absent +
absent +
arising +
terminal +
not hairy +
single +
scabridulous +
concealing +
close +
fused +
hard +
thick +
parallel +
convolute +
0.3 cm3 mm <br />0.003 m <br /> (?) +
not evident +
filiform +
ascending;appressed +
many;1 +
capillary +
well-developed +
hairy +
blunt +
not branching +
climbing +
floating +
erect +
glabrous +
not woody +
reduced +
Calif. +
capillary +
adjacent +
slightly shorter +
sometimes longer +
hairy +
sexual +
terete +
pliable +
1-10-veined +
subtending +
absent +
1/4 +
subequal +
membranous +
2-veined +
not keeled +
punctate +
Present +
compound +
reduced +
absent +
absent +
basal +
3-5-veined +
hairy +
membranous +
not ciliate +
absent +
glabrous +
membranous +
? (?) +
membranous +
veined +
truncate +
free +
inconspicuous +
lanceolate +
membranous +
not overlapping +
simple +
exposed +
absent +
glabrous +
well-developed +
shorter +
slightly longer +
absent +
hairy +
keeled +
reduced +
contracted +
developing +
absent +
separating +
thin +
absent +
not prolonged +
evident +
open +
closed +
scabrous +
glabrous +
smooth to somewhat +
Endemic +
ebracteate +
mixed +
attached +
white +
free +
parallel-sided +
Ptilagrostis kingii +
Ptilagrostis +
species +
single +
hyaline +
membranous +
absent +
inconspicuous +
not rhizomatous +
perennial +