Agrostis hooveri

Swallen
Common names: Hoover's bent
Endemic
Treatment appears in FNA Volume 24. Treatment on page 654.
Please click on the illustration for a higher resolution version.
Illustrator: Sandy Long

Copyright: Utah State University

Plants perennial; cespitose, not rhizomatous, not stoloniferous. Culms 30-80 cm, erect, usually with more than 3 nodes. Leaves mostly on the lower 1/2 of the culm; basal leaves withered by anthesis; lower leaf-sheaths finely tomentose, the tomentum extending to below-ground; upper leaf-sheaths smooth; ligules 2.5-6 mm, dorsal surfaces scabridulous, apices acute to truncate, lacerate; blades 10-16 cm long, 0.5-1 (2) mm wide, flat, becoming involute. Panicles (4) 10-17 cm long, 2-5 cm wide, broadly lanceolate, usually open, exserted from the upper sheaths at maturity, lowest node with 1-8 branches; branches scabrous, generally ascending, mostly branching at about midlength, sometimes to near the base, lower branches 1.5-5 cm; pedicels 0.4-5 mm. Spikelets lanceolate, slightly purplish. Glumes equal to subequal, 1.8-3 mm, 1-veined, scabridulous on the veins, sometimes also on the body, acute; callus hairs to 0.3 mm, abundant; lemmas 1.5-2 mm, scabridulous to warty throughout or only on the veins, translucent to opaque, 5-veined, veins prominent distally, apices truncate, minutely toothed to about 0.2 mm, awned on the lower 1/3, awns to 2.5 mm, geniculate, persistent; paleas absent or minute; anthers 3, 1-1.5 mm, usually shed at anthesis. Caryopses 1-1.5 mm; endosperm liquid. 2n = unknown.

Discussion

Agrostis hooveri is an uncommon species, endemic to dry, sandy soils, open chaparral, and oak woodlands of San Luis Obispo and Santa Barbara counties, California.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Agrostis hooveri"
membranous +  and scarious +
not penicillate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
awned +  and truncate +
Toothed (?) +, Lacerate (?) +, Acute (?) +  and Truncate (?) +
0.2 cm2 mm <br />0.002 m <br /> (?) +
M.J. Harvey +
Swallen +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
geniculate +
0 cm0 mm <br />0 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
rounded +  and keeled +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
10 cm100 mm <br />0.1 m <br /> (16 cm160 mm <br />0.16 m <br />) +
not evident +
scabridulous +
cross +, linear +  and narrowly lanceolate +
0.5mm;1mm +
spikelike +
0 cm0 mm <br />0 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
hairy +  and glabrous +
Hoover's bent +
not branching +
30 cm300 mm <br />0.3 m <br /> (80 cm800 mm <br />0.8 m <br />) +
not woody +
1/4 +  and 1/3 +
capillary +
pistillate +  and staminate +
sometimes longer +
sterile +  and bisexual +
compressed +
reduced +
(1)1.3-2(4) times longer than +
subtending +
scabridulous +
subequal +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
uncinate +
diffuse +  and dense +
translucent +  and opaque +
pubescent +  and glabrous +
scabridulous +  and warty +
lanceolate +  and ovate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
membranous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
inconspicuous +
lanceolate +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
concealed +  and prominent +
2 +  and 1 +
well-developed +
2-keeled +
10cm +  and 17cm +
lanceolate +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
dry +  and fleshy +
not prolonged +
hairy +  and glabrous +
scabrous +  and scabridulous +
1 +  and 60 +
lanceolate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Agrostis hooveri +
Agrostis +
species +
membranous +
2 +  and 5 +
not convergent +
scabrous +  and scabridulous +
not stoloniferous +  and not rhizomatous +
plant +  and cespitose +
aquatic +  and terrestrial +