Hyparrhenia hirta

(L.) Stapf
Common names: Thatching grass
Introduced
Treatment appears in FNA Volume 25. Treatment on page 678.
Revision as of 03:28, 30 July 2020 by imported>Volume Importer
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Plants perennial; cespitose but with short rhizomes. Culms 30-100 cm. Sheaths glabrous; blades 2-40 cm long, 1-3 (4) mm wide. Peduncles 5-10 cm; rames 1-3.5 (4) cm, 1 almost sessile, the other with a 5-10 mm base, both with 8-14 heterogamous spikelet pairs. Glumes of all spikelets densely pubescent, hairs to 0.3 mm, white to dark yellow. Sessile spikelets of homogamous pairs 4.9-5.6 mm; sessile spikelets of heterogamous pairs 4-4.5 mm; lemmas awned, awns 1-3.5 cm. Pedicellate spikelets 4.8-6.5 mm. 2n = 30, 44, 45.

Distribution

Calif., Pacific Islands (Hawaii), Tex.

Discussion

Hyparrhenia hirta is native to southern Africa, where it grows on stony soils and is sometimes used for thatching. It has been cultivated in Texas and Florida, but is not currently known to be established in the Flora region. A report of its occurrence in Los Angeles County, California, has not been verified.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Hyparrhenia hirta"
45 +, 44 +  and 30 +
anatomy +  and kranz +
Mary E. Barkworth +
(L.) Stapf +
1 (?) +  and 3 (?) +
19 cm190 mm <br />0.19 m <br /> (?) +
pubescent +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
keeled +  and rounded +
heterogamous +  and sterile +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
pseudopetiolate +
non-radiate +  and radiate +
well-developed +
2 cm20 mm <br />0.02 m <br /> (40 cm400 mm <br />0.4 m <br />) +
folded +  and flat +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
spikelike +
blunt +  and sharp +
subterete +  and oblong +
Thatching grass +
purple +  and reddish +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
not woody +
Calif. +, Pacific Islands (Hawaii) +  and Tex. +
capillary +
sometimes longer +
concealing +
compressed +  and terete +
shorter or longer +
subtending +
compressed +  and rounded +
unequal +
white +  and dark yellow +
uncinate +
0 cm0 mm <br />0 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
axillary +  and subtending +
solid +  and hollow +
photosynthetic +
not aromatic +
coriaceous +
membranous +
inconspicuous +
truncate +  and slightly bilobed +
complex +  and simple +
concealed +  and prominent +
sessile-pedicellate +
heterogamous +
not adnate +
4 cm40 mm <br />0.04 m <br /> (?) +
1 cm10 mm <br />0.01 m <br /> (?) +  and 3.5 cm35 mm <br />0.035 m <br /> (?) +
dry +  and fleshy +
elongate +
Introduced +
pedicellate +  and sessile +
in triplets +  and paired +
usually slightly longer +
8 +  and 14 +
subterete +  and compressed +
usually smaller +  and reduced +
0.48 cm4.8 mm <br />0.0048 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Hyparrhenia hirta +
Hyparrhenia +
species +
membranous +
sessile-pedicellate +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +