Pleuropogon californicus var. californicus

Common names: Annual semaphoregrass
Treatment appears in FNA Volume 24.

Plants annual or facultative perennials. Spikelets 15-30 mm. Lemmas usually awned, awns 5-11 mm, rarely unawned; paleal appendages 0.5-2.5 mm. 2n = 16.

Discussion

Pleuropogon californicus var. californicus grows in vernal pools, marshy grasslands, orchards, and roadside ditches in California, from southern Humboldt County south to San Luis Obispo County, and east to Amador County.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

membranous +  and scarious +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
awned +, emarginate +  and truncate +
usually rounded +  and acute +
scarious +
Paul P.H. But +
(Nees) Benth. ex Vasey +
1 (?) +  and 3 (?) +
straight +
basal +  and apical +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
persistent +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
3 cm30 mm <br />0.03 m <br /> (29 cm290 mm <br />0.29 m <br />) +
flat +  and folded +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Annual semaphoregrass +
extravaginal +  and basal +
geniculate +
15 cm150 mm <br />0.15 m <br /> (95 cm950 mm <br />0.95 m <br />) +
not woody +
0 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
sometimes longer +
7 +  and 20 +
compressed +
reduced +
subtending +
lanceolate +  and broadly ovate +
unequal +  and subequal +
membranous +
uncinate +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
scabridulous +
triangular +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
herbaceous +  and membranous +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
inconspicuous +
lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
extended +
concealed +  and prominent +
3 +  and 6 +
2 +  and 1 +
well-developed +
subequal +
9 cm90 mm <br />0.09 m <br /> (?) +
ascending +  and spreading +
0.1 cm1 mm <br />0.001 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
dry +  and fleshy +
8 cm80 mm <br />0.08 m <br /> (35 cm350 mm <br />0.35 m <br />) +
6 +  and 13 +
not viviparous +
compressed +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Pleuropogon californicus var. californicus +
Pleuropogon californicus +
variety +
membranous +
0.2 cm2 mm <br />0.002 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
perennial +  and annual +
perennial +  and annual +
aquatic +  and terrestrial +
10 +, 9 +  and 8 +