Coelorachis rugosa
Coelorachis tuberculosa
wrinkled jointgrass, wrinkled jointtail grass
bumpy jointtail grass, smooth jointgrass
60-120 cm, compressed-keeled.
60-120 cm, compressed-keeled.
compressed-keeled;
ligules 0.5-1 mm.
compressed-keeled, glabrous;
blades to 31 cm long, to 7.8 mm wide, folded or flat, glabrous.
about 2 mm, broadly ellipsoid.
3-9.5 cm;
rachises distinctly indented adjacent to the sessile spikelets.
4-8 cm;
rachises not or only slightly indented adjacent to the sessile spikelets.
spikelets 3-4 mm;
lower glumes transversely rugose;
upper lemmas and paleas 2-3 mm.
spikelets 3.3-4.3 mm long, 1.3-2 mm wide;
lower glumes smooth or sparsely and shallowly transversely rugose, keels narrowly winged.
spikelets 1-3 mm.
spikelets 1.9-2.6 mm, reduced to scales.
= unknown.
= unknown.
Coelorachis rugosa
Coelorachis tuberculosa
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.)
Coelorachis tuberculosa is an uncommon species, endemic to the southeastern United States. It grows in moist to wet areas such as bogs and pine woods, especially flatwoods and savannahs.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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