Coelorachis rugosa
Coelorachis tessellata
wrinkled jointgrass, wrinkled jointtail grass
checkered jointtail grass, pitted jointgrass
60-120 cm, compressed-keeled.
80-120 cm, compressed4ceeled.
compressed-keeled;
ligules 0.5-1 mm.
compressed-keeled;
blades to 41 cm long, to 7.8 mm wide, folded to flat, scabrous above.
about 2 mm, broadly ellipsoid.
3-9.5 cm;
rachises distinctly indented adjacent to the sessile spikelets.
4.5-7(12) cm.
spikelets 3-4 mm;
lower glumes transversely rugose;
upper lemmas and paleas 2-3 mm.
spikelets 3.9-6.2 mm long, 2.1-2.4 mm wide;
lower glumes with rectangular pits, keels narrowly winged distally.
spikelets 1-3 mm.
spikelets 2.3-2.7 mm, reduced to scales.
= unknown.
= unknown.
Coelorachis rugosa
Coelorachis tessellata
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 tessellata is endemic to the southern coastal plain of the United States, extending from Louisiana to northern Florida, although it is rare in Florida. It grows in bogs and moist pine woods, especially flatwoods.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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