Sporobolus virginicus
Sporobolus junceus
marine couch, sand couch, seashore dropseed
piney woods dropseed
10-65 cm, erect to decumbent.
(30)40-100 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 below, margins and apices sometimes sparsely ciliate;
ligules 0.1-0.2 mm;
blades (6)10-30 cm long, 0.8-2 mm wide, flat to tightly involute, glabrous abaxially, scabridulous adaxially, margins scabrous, apices pungent.
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.
7-28 cm long, 2-6 cm wide, open, pyramidal;
lower nodes with 3 or more branches;
primary branches 0.7-4.5 cm, spreading 20-100° from the rachis, whorled or verticellate, without spikelets on the lower 1/8–1/2;
secondary branches appressed;
pedicels 0.4-2.5 mm, appressed, scabridulous.
(1.8)2-3.2 mm, yellowish-white to purplish-tinged, sometimes grayish.
2.6-3.8 mm, purplish-red.
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 lanceolate or ovate, hyaline to membranous;
lower glumes 0.9-3 mm;
upper glumes 2.6-3.8 mm, as long as or longer than the florets;
lemmas 2-3.6 mm, ovate, membranous, glabrous, acute;
paleas 2-3.6 mm, ovate, membranous;
anthers 1.4-2 mm, purplish.
not known.
1.4-1.8 mm, ellipsoid, somewhat laterally flattened, somewhat rugulose, reddish-brown.
= 20, 30.
= unknown.
Sporobolus virginicus
Sporobolus junceus
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 junceus grows in openings in pine and hardwood forests, coastal prairies, and pine barrens, usually in sandy to loamy soils, at 2-400 m. Its range lies entirely within the southern United States.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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