Poa unilateralis subsp. unilateralis

Treatment appears in FNA Volume 24. Treatment on page 596.
Please click on the illustration for a higher resolution version.
Illustrator: Sandy Long

Copyright: Utah State University

Innovation blades sometimes narrower and thinner than the cauline blades; cauline blades flat or folded, thin or thick and a bit fleshy. Calluses glabrous or with a crown of hairs, hairs to 0.1 mm; lemmas glabrous or the keels and marginal veins villous or puberulent for less than 1/5 the lemma length. 2n =42, 84.

Discussion

The range of Poa unilateralis subsp. unilateralis extends from northern Oregon to central California.

Selected References

None.

Lower Taxa

None.

"reduced" is not a number."thick" is not a number."decumbent" is not a number."sometimes narrower and thinner" is not a number.

membranous +  and scarious +
puberulent +, hispidulous +, hairy +  and glabrous +
5 cm50 mm <br />0.05 m <br /> (?) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
scarious-hyaline +
Robert J. Soreng +
Scribn. +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
keeled +  and rounded +
strigose +  and glabrous +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
persisting +
not evident +
involute +, folded +  and flat +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (?) +
hispidulous +, glabrous +, smooth or +  and sparsely densely scabrous +
terete +  and angled +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
with a crown +  and glabrous +
compressed +  and terete +
folded +  and flat +
unbranched +  and hollow +
ascending +  and erect +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
not woody +
Calif. +, Oreg. +  and Wash. +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
3 +  and 5 +
compressed +
reduced +
sometimes +  and normal +
1-3(5)-veined +
shorter or longer +
subtending +
keeled +  and lanceolate +
unequal +
distributed +
uncinate +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
0 +  and 1/6 +
Oval (?) +  and Round (?) +
milky white +  and slightly greenish +
indistinct +
puberulent +  and villous +
scabrous +  and papillate +
5(7-11)-veined +
0 +  and 1/5 +
keeled +  and lanceolate +
subequal +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
membranous +
erose +  and entire +
white +  and milky white or hyaline +
ciliolate +  and smooth +
obtuse +  and acute +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
inconspicuous +
lobed +  and lanceolate +
milky white +  and slightly greenish +
puberulent +  and villous +
concealed +  and prominent +
0 +  and 5 +
2 +  and 1 +
well-developed +
2-keeled +
subequal +
25 cm250 mm <br />0.25 m <br /> (?) +
cylindrical +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
dry +  and fleshy +
pubescent +, glabrous +, scabrous +  and smooth +
2 +  and 10 +
lanceolate +  and narrowly ovate +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Poa unilateralis subsp. unilateralis +
Poa unilateralis +
subspecies +
membranous +
parallel +  and converging +
branching +, not rhizomatous +  and not stoloniferous +
aquatic +  and terrestrial +