Rhynchospora divergens

Chapman ex M. A. Curtis

Amer. J. Sci. Arts, ser. 2, 7: 409. 1849.

Illustrated
Treatment appears in FNA Volume 23. Treatment on page 220. Mentioned on page 203, 221.
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Plants perennial, densely cespitose, 10–60 cm; rhizomes absent. Culms erect or spreadingarching, linearfiliform, terete, leafy toward base. Leaves overtopped by culm; blades ascending, filiform, 0.3–0.5 mm wide, margins deeply involute, then channeled, apex trigonous, setaceous. Inflorescences: spikelet clusters 1–2 (–4), dense (–open), narrowly to broadly turbinate; branches capillary, variously elongate; leafy bracts setaceous, proximal exceeding clusters. Spikelets brownish, lanceellipsoid to fusiform, 2–2.5 (–3) mm, apex acute; fertile scales broadly elliptic, 1.5 mm, apex narrowly rounded to broadly acute, apiculate, convexcupulate, midrib narrow, shortexcurrent or included. Flowers: perianth absent. Fruits 1–3 or more per spikelet, (0.6–) 0.7–0.9 (–1) mm; body pale, glassy, obovoidlenticular, 0.6–0.7 × 0.4–0.5 mm, margins narrow, wirelike; surfaces finely striate, very finely reticulate; tubercle button depressedtriangular or patelliform, 0.1–0.15 mm, apiculate.


Phenology: Fruiting summer–fall or all year (south).
Habitat: Moist sands, peats, silts or clays of low meadows, bogs, flatwoods, sometimes seeps over calcareous rock
Elevation: 0–300 m

Distribution

V23 383-distribution-map.jpg

Ala., Fla., Ga., La., Miss., N.C., S.C., Tex., West Indies (Bahamas), West Indies (Cuba), West Indies (Dominican Republic), Central America

Discussion

Selected References

None.

Lower Taxa

None.

"wider" is not a number.

... more about "Rhynchospora divergens"
Robert Kral +
Chapman ex M. A. Curtis +
shortened +
2-lobed +  and lunate +
scabridulous +  and scabrid +
filiform +
0.3mm;0.5mm +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
warty +, papillate +, alveolate +  and pitted +
ridged +, terete +, lenticular +  and flattened +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
2-ranked +  and arranged +
ascending +  and appressed +
setaceous +
elongate +  and capillary +
parallel +  and divergent +
terete +, rolled +  and plicate +
spreadingarching +  and erect +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +, Tex. +, West Indies (Bahamas) +, West Indies (Cuba) +, West Indies (Dominican Republic) +  and Central America +
0–300 m +
distalmost +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
biconvex +  and trigonous +
Moist sands, peats, silts or clays of low meadows, bogs, flatwoods, sometimes seeps over calcareous rock +
racemose +, corymbose +  and paniculate +
erect +, rarely +  and spreading +
3-ranked +  and polystichous +
cauline +  and basal +
wirelike;channeled +
decurrent +
plumed +  and barbed +
deciduous +  and persistent +
shorter or longer +
of 2-12(-20) bristles +
Fruiting summer–fall or all year (south). +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Amer. J. Sci. Arts, ser. +
adventitious +
basal +  and proximal +
2-keeled +
1.5 cm15 mm <br />0.015 m <br /> (?) +
cylindric +
Illustrated +
lanceellipsoid;fusiform +
2 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
cleft +, 2-fid +  and undivided +
Dichromena +  and Psilocarya +
Rhynchospora divergens +
Rhynchospora +
species +
sulcate +  and 2-edged +
patelliform +  and button +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.015 cm0.15 mm <br />1.5e-4 m <br />) +
plant +  and cespitose +