Dasyochloa pulchella

(Kunth) Willd. ex Rydb.
Common names: Fluffgrass
Synonyms: Triodia pulchella Tridens pulchellus Erioneuron pulchellum
Treatment appears in FNA Volume 25. Treatment on page 47.

Culms (1) 4-15 cm, scabrous or puberulent; peduncles (internode below the panicles) 3-7 (11) cm. Sheaths striate, margins scarious; ligules 3-5 mm; blades (1) 2-6 cm, abaxial surfaces scabrous, adaxial surfaces scabridulous. Panicles 1-2.5 cm long, 1-1.5 cm wide, densely white-pubescent, light green or purple-tinged. Spikelets (5) 6-9 (10) mm, with (4) 6-10 florets. Lower glumes 6-8.5 mm; upper glumes 6.5-9 mm, as long as or longer than the florets; lemmas 3-5.5 mm, lobes (1) 3-3.2 mm, midveins extending into straight (1.5) 2.5-4 mm awns; paleas 2-3.5 mm, keels long pilose proximally, ciliate distally; anthers 0.2-0.5 mm. Caryopses 1-1.5 mm, translucent. 2n = 16.

Distribution

Md., Colo., N.Mex., Tex., Utah, Calif., Wyo., Ariz., Nev.

Discussion

Dasyochloa pulchella grows in rocky soils of arid regions. It extends from the United States to central Mexico and is the most common grass in the Larrea-Flourensia scrub of the southwestern United States and adjacent Mexico.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Dasyochloa pulchella"
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Jesus Valdes-Reyna +
(Kunth) Willd. ex Rydb. +
1 (?) +  and 3 (?) +
1.5 cm15 mm <br />0.015 m <br /> (?) +
straight +
multiple +, , +  and single +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
1 cm10 mm <br />0.01 m <br /> (?) +
pubescent +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
spikelike +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Fluffgrass +
bending +  and erect +
puberulent +  and scabrous +
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
not woody +
Md. +, Colo. +, N.Mex. +, Tex. +, Utah +, Calif. +, Wyo. +, Ariz. +  and Nev. +
/2 +  and 1 +
not waisted +
capillary +
pistillate +  and staminate +
6 +  and 10 +
round +  and compressed +
reduced +
shorter or longer +
subtending +
weakly keeled shortly awned +  and mucronate +
subequal +
uncinate +
paniculate +  and racemose +
hollow +  and solid +
not absent +
2-lobed +, keeled +  and rounded +
0.3 cm3 mm <br />0.003 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
membranous +
sometimes longer +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1 cm10 mm <br />0.01 m <br /> (?) +
inconspicuous +
0.6 cm6 mm <br />0.006 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
concealed +  and prominent +
2 +  and 1 +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
purple-tinged +  and light green +
1cm +  and 2.5cm +
white-pubescent +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
11 cm110 mm <br />0.11 m <br /> (?) +
3 cm30 mm <br />0.03 m <br /> (?) +  and 7 cm70 mm <br />0.07 m <br /> (?) +
dry +  and fleshy +
spikelike +
subsessile +  and shortly pedicellate +
compressed +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Triodia pulchella +, Tridens pulchellus +  and Erioneuron pulchellum +
Dasyochloa pulchella +
Dasyochloa +
species +
membranous +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
7 +  and 13 +
plant +  and mat-forming +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +