Flora of North America species comparison

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Coelorachis rugosa

wrinkled jointgrass, wrinkled jointtail grass
Habit Plants cespitose.
Culms

60-120 cm, compressed-keeled.
Sheaths

compressed-keeled;

ligules 0.5-1 mm.
Caryopses

about 2 mm, broadly ellipsoid.
Rames

3-9.5 cm;

rachises distinctly indented adjacent to the sessile spikelets.
Sessile

spikelets 3-4 mm;

lower glumes transversely rugose;

upper lemmas and paleas 2-3 mm.
Pedicellate

spikelets 1-3 mm.
2n

= unknown.

Coelorachis rugosa
Distribution
from FNA
AL; AR; DE; FL; GA; LA; MD; MS; NC; NJ; SC; TX; VA
[WildflowerSearch map]
[BONAP county map]
Discussion

Coelorachis rugosa is endemic to the southeastern United States. It grows in moist to wet areas in prairies, bogs, and pine woods, especially flatwoods and savannahs.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 25, p. 688.
Parent taxa Poaceae > subfam. Panicoideae > tribe Andropogoneae > Coelorachis
Sibling taxa
C. cylindrica, C. tessellata, C. tuberculosa
Synonyms Mnesithsa rugosa, Manisuris rugosa
Name authority (Nutt.) Nash
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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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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