Crypsis vaginiflora

(Forssk.) Opiz
Common names: Modest pricklegrass
Introduced
Synonyms: Crypsis niliacea
Treatment appears in FNA Volume 25. Treatment on page 140.

Culms 1-30 cm, often profusely branching above the base, with 10-25 panicles per culm. Sheaths pilose on the margins; collars pilose; blades 1-5 cm long, 1-3 mm wide, soon disarticulating, thus many leaves on mature plants bladeless. Panicles 0.3-1.5 (3.5) cm long, 3-6 (10) mm wide, 1-5 times longer than wide, sessile or almost so, mostly included in the sheaths of the upper 2 leaves. Spikelets 2.5-3.2 mm, readily disarticulating when disturbed, otherwise retained within the upper sheaths. Glumes about 3 mm, subequal; lower glumes pilose on the margins; lemmas subequal to the glumes; paleas minutely 2-veined; anthers 3, 0.5-0.9 mm. Caryopses 1.3-1.7 mm. 2n = 48.

Discussion

Crypsis vaginiflora is common to abundant in clay or sandy clay soil in California, where it was first introduced in the late 1800s. It has since been found at a few locations in Washington, Idaho, and Nevada, and will probably spread to additional sites with suitable habitat in the future. It is native to Egypt and southwestern Asia.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Crypsis vaginiflora"
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
Barry E. Hammel +  and John R. Reeder +
(Forssk.) Opiz +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
pubescent +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
1mm;3mm +
spikelike +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Modest pricklegrass +
erect +  and geniculately ascending +
1 cm10 mm <br />0.01 m <br /> (30 cm300 mm <br />0.3 m <br />) +
not woody +
Calif. +  and Idaho +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
bisexual +  and fertile +
round +  and compressed +
reduced +
shorter or longer +
subtending +
subequal +
3 cm30 mm <br />0.03 m <br /> (?) +
uncinate +
paniculate +  and racemose +
capitate +  and spikelike +
hollow +  and solid +
not absent +
mucronate +, not lobed +  and keeled +
subequal +
membranous +
sometimes longer +
inconspicuous +
2 +  and 1 +
almost +  and sessile +
0.3cm +  and 1.5cm +
10 +  and 25 +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
dry +  and fleshy +
spikelike +
inflated +
Introduced +
disarticulating +
1 +  and 60 +
compressed +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Crypsis niliacea +
Crypsis vaginiflora +
species +
membranous +
7 +  and 13 +
aquatic +  and terrestrial +