Eremochloa

Biise
Treatment appears in FNA Volume 25. Treatment on page 688.
 TaxonIllustrator 
FNA25 P270A Eremochloa pg 692.jpegEremochloa ophiuroides
Eremochloa ciliaris
Hana Pazdírková
Linda A. Vorobik
Hana Pazdírková
Linda A. Vorobik

Plants perennial; cespitose, sometimes stoloniferous. Culms 10-70 cm, herbaceous, erect to decumbent, basal branching extravaginal. Leaves not aromatic; sheaths open; auricles absent; ligules membranous, truncate; blades flaccid, linear to lanceolate. Inflorescences terminal, of long-pedunculate, solitary, 1-sided rames (axillary rames occasionally present) with more than 1 spikelet unit; rame internodes clavate, glabrous; disarticulation in the rames. Spikelets in heteromorphic sessile-pedicellate pairs, pedicellate spikelets absent or rudimentary. Sessile spikelets imbricate, not embedded in the rame axes, dorsally compressed, with 2 florets, unawned; calluses truncate; glumes exceeding the florets, differing in shape; lower glumes 4-9-veined, 2-keeled, keels with spinelike projections and often winged distally, smooth between the keels, margins folded inward; upper glumes often shorter than the lower glumes, 3-5-veined, keels entire; lower florets staminate; lower paleas present; upper florets bisexual or pistillate; lemmas and paleas hyaline, unawned; anthers 3; style-branches 2, red, free to the base. Pedicels closely appressed but not fused to the rame axes, flattened, thick, widening above the bases, glabrous. Pedicellate spikelets usually absent or rudimentary, occasionally well-developed, x = 9.

Distribution

Puerto Rico, Va., Mass., Miss., Tex., La., Calif., Ala., Tenn., N.C., S.C., Ark., Ga., Fla.

Discussion

Eremochloa is a genus of 11 species that are native to Asia and Australia. One species is naturalized in the southeastern United States; another was found once in California but is not established in the Flora region.

Key

1 Keels of the lower glumes of the sessile spikelets winged distally, with 1-several 0.2-0.3 mm hooklike spines at the base Eremochloa ophiuroides
1 Keels of the lower glumes of the sessile spikelets not winged, spine-bearing throughout, the basal spines 1-3 mm Eremochloa ciliaris

"decumbent" is not a number.

... more about "Eremochloa"
anatomy +  and kranz +
John W. Thieret +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
pseudopetiolate +
non-radiate +  and radiate +
well-developed +
linear +  and lanceolate +
reduced +
spikelike +
purple +  and reddish +
erect +  and decumbent +
extravaginal +  and basal +
10 cm100 mm <br />0.1 m <br /> (70 cm700 mm <br />0.7 m <br />) +
not woody +
Puerto Rico +, Va. +, Mass. +, Miss. +, Tex. +, La. +, Calif. +, Ala. +, Tenn. +, N.C. +, S.C. +, Ark. +, Ga. +  and Fla. +
capillary +
sometimes longer +
concealing +
compressed +  and terete +
shorter or longer +
subtending +
compressed +  and rounded +
unequal +
uncinate +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
axillary +  and subtending +
solid +  and hollow +
photosynthetic +
not aromatic +
coriaceous +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
sessile-pedicellate +  and heteromorphic +
not fused +
flattened +
widening +  and thick +
dry +  and fleshy +
elongate +
buitenhuis2001a +
pedicellate +  and sessile +
well-developed +
sterile +  and bisexual +
compressed +
usually smaller +  and reduced +
1 +  and 3 +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Eremochloa +
Poaceae tribe Andropogoneae +
membranous +
sessile-pedicellate +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +