Alopecurus aequalis var. sonomensis

P. Rubtzov
Common names: Sonoma shortawn foxtail
Treatment appears in FNA Volume 24. Treatment on page 784.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Culms 30-75 cm. Blades to 7.5 mm wide. Panicles 2.5-9 cm long, 4-9 mm wide. Spikelets violet-gray to purplish-tinged, especially towards the apices; glumes to 3.7 mm; awns exceeding the lemmas by 1-2.5 mm; anthers 1-1.2 mm.

Discussion

Alopecurus aequalis var. sonomensis is endemic to Marin and Sonoma counties, California, where it grows in shallow water and marshy or moist ground, usually in the open. It is listed as endangered by the U.S. Fish and Wildlife Service.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

membranous +  and scarious +
usually pale +  and deep yellow or orange +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
purplish +  and pale green +
straight +
1/3 (?) +  and 1/2 (?) +
William J. Crins +
P. Rubtzov +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
midlength +
swelling +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
not evident +
scabrous +  and glabrous +
involute +  and flat +
0mm;7.5mm +
spikelike +
Sonoma shortawn foxtail +
not branching +
solitary +  and clumped +
decumbent +  and erect +
30 cm300 mm <br />0.3 m <br /> (75 cm750 mm <br />0.75 m <br />) +
not woody +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
sterile +  and bisexual +
compressed +
reduced +
shorter or longer +
unequal +
0 cm0 mm <br />0 m <br /> (0.37 cm3.7 mm <br />0.0037 m <br />) +
membranous +
exceeding the florets +  and equaling +
narrowing +
uncinate +
capitate +  and cylindrical +
1-7(9)-veined +
lanceolate +  and ovate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
membranous +
glabrous +  and puberulent +
0.2 cm2 mm <br />0.002 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
membranous +
inconspicuous +
lanceolate +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
concealed +  and prominent +
2 +  and 1 +
well-developed +
2-keeled +
reduced +
2.5cm +  and 9cm +
spikelike +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
dry +  and fleshy +
not prolonged +
violet-gray +  and purplish-tinged +
1 +  and 60 +
oval +  and compressed +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Alopecurus aequalis var. sonomensis +
Alopecurus aequalis +
variety +
membranous +
not inflated +
parallel +  and converging +
plant +  and cespitose +
aquatic +  and terrestrial +