Sporobolus virginicus
Sporobolus fimbriatus
marine couch, sand couch, seashore dropseed
fringe dropseed
10-65 cm, erect to decumbent.
30-120(160) cm.
overlapping, margins ciliate, apices with tufts of hairs, hairs to 2 mm;
ligules 0.1-0.4 mm;
blades usually conspicuously distichous, 4-16 cm long, 2-5 mm wide, flat to loosely involute, glabrous abaxially, scabridulous adaxially, margins scabridulous.
rounded and papery below;
ligules 0.1-0.3 mm;
blades 10-30 cm long, 2-4(5) mm wide, not obviously distichous, flat, becoming folded, pilose abaxially, tapering to the slender apices.
3-10 cm long, 0.4-1.6 cm wide, contracted, spikelike, dense;
primary branches 0.5-2 cm, appressed, spikelet-bearing to the base;
pedicels 0.2-1.4 mm, appressed.
15-50 cm long, 2.4-8 cm wide, somewhat contracted to rather lax and open;
primary branches appressed or ascending, spreading to 60°from the rachis;
spikelet-bearing to the base or without spikelets on the lower 1/4, lower branches mostly 2-9 cm, longer than the internodes;
pedicels 0.7-3 mm.
(1.8)2-3.2 mm, yellowish-white to purplish-tinged, sometimes grayish.
1.4-2.2 mm, plumbeous to greenish.
subequal, ovate-oblong, membranous;
lower glumes 1.5-2.4 mm;
upper glumes 1.8-3(3.2) mm;
lemmas 2.1-3 mm, ovate to lanceolate, membranous, glabrous, acute;
paleas 2.1-3 mm, ovate, membranous;
anthers 3, 1-1.7 mm, yellowish.
unequal, linear-lanceolate to ovate, membranous;
lower glumes (0.4)0.6-1.2(1.5) mm, without midveins, acuminate;
upper glumes (0.9)1.4-2 mm, 2/3 to as long as the spikelet, faintly 1-veined, acute;
lemmas (1.4)1.8-2.2 mm, narrowly ovate, glabrous, 1-veined, acute;
paleas (1.2)1.6-2 mm, ovate;
anthers 3, 09-1.2 mm.
not known.
0.6-1 mm, quadrangular, laterally compressed, whitish-brown, truncate.
= 20, 30.
= unknown.
Sporobolus virginicus
Sporobolus fimbriatus
Sporobolus virginicus grows on sandy beaches, sand dunes, and in saline habitats, primarily along the south-eastern coast, occasionally inland. Its range extends through Mexico and Central America to Peru, Chile, and Brazil. No fruits of this species have been found despite examination of several natural populations and over 200 herbarium specimens.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Sporobolus fimbriatus is an African species that has only been found in waste areas near the sites of old wool mills in Berkeley and Florence counties, South Carolina.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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