Flora of North America species comparison

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Hyparrhenia rufa

Jaragua grass
Habit Plants usually perennial; cespitose but with short rhizomes.
Culms

30-350 cm.
Sheaths

glabrous;

blades 30-60 cm long, 2-8 mm wide.
Peduncles

0.7-7 cm;

rames 1.5-2.5 cm, 1 almost sessile, the other with a 6-10 mm stalk, both with 7-14 heterogamous spikelet pairs.
Glumes

of all spikelets moderately densely pubescent, hairs reddish.
Sessile

spikelets of homogamous pairs 3-5.5 mm, sessile spikelets of heterogamous pairs 3.2-4.2 mm;

lemmas awned, awns 2-3 cm.
Pedicellate

spikelets 3-5 mm.
2n

= 30, 36, 40.

Hyparrhenia rufa
Distribution
from FNA
FL; HI; PR
[BONAP county map]
Discussion

Hyparrhenia rufa is native to the Eastern Hemisphere tropics, but is now established in tropical America. It grows in ditches, pastures, swamps, and pine flatwoods, and along roadsides, in the southeastern United States.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 25, p. 678.
Parent taxa Poaceae > subfam. Panicoideae > tribe Andropogoneae > Hyparrhenia
Sibling taxa
H. hirta
Name authority (Nees) Stapf
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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