Rhynchospora crinipes

Gale

Rhodora 46: 173, plate 823, figs. 2A, B. 1944.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 233. Mentioned on page 206, 232.
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Plants perennial, solitary or cespitose, 60–100 cm; rhizomes sometimes present, stoloniferous. Culms lax, leafy, mostly excurved, slender. Leaves shorter than culm; blades ascending, narrowly linear, proximally flat, 2–4 (–5) mm wide, apex trigonous, shortsubulate, tapering. Inflorescences: spikelet clusters 3–7 (–10), dense, all but most distal widely spaced, broadly turbinate to ovate or hemispheric. Spikelets light-redbrown, lanciform, 5 mm, apex acuminate; fertile scales lanceolate, 4–4.5 mm, apex acuminate, midrib excurrent as awn. Flowers: bristles 6, reaching past tubercle base, usually to or slightly past its tip, antrorsely barbellate. Fruits 2 (–4) per spikelet; stipe and receptacle curled-setose, (0.5–) 0.6–08 (–1) mm; body glossy, brown with pale center, narrowly obovoidlenticular, 1.2–1.5 mm, surfaces minutely striate, sometimes transversely minutely rugulose with wavy rows of dark minute dots; margins narrow, strong, flowing to tubercle; tubercle narrowly triangular, slightly concavesided, flattened, setulose-ciliate, 0.7–1.1 mm.


Phenology: Fruiting summer–fall.
Habitat: Sands, gravels, and peat muck of banks and bars of blackwater streams
Elevation: 0–100 m

Distribution

V23 414-distribution-map.jpg

Ala., Fla., Ga., Miss., N.C.

Discussion

Clumps of Rhynchospora crinipes are often toppled by floodwaters, these clumps then can root from lower nodes. When clusters of spikelets have ripened fruit, these will germinate while still attached to the parent culm.

Selected References

None.

Lower Taxa

None.

"wider" is not a number.

... more about "Rhynchospora crinipes"
Robert Kral +
shortened +
2-lobed +  and lunate +
scabridulous +  and scabrid +
v--shaped +
2mm;4mm +
warty +, papillate +, alveolate +  and pitted +
ridged +, terete +, lenticular +  and flattened +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
excurved +
slender +
Ala. +, Fla. +, Ga. +, Miss. +  and N.C. +
0–100 m +
distalmost +
biconvex +  and trigonous +
Sands, gravels, and peat muck of banks and bars of blackwater streams +
racemose +, corymbose +  and paniculate +
erect +, rarely +  and spreading +
3-ranked +  and polystichous +
cauline +  and basal +
keeled;terete;keeled;terete +
revolute +  and involute +
decurrent +
plumed +  and barbed +
deciduous +  and persistent +
shorter or longer +
of 2-12(-20) bristles +
Fruiting summer–fall. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0.8 cm8 mm <br />0.008 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
stoloniferous +
adventitious +
basal +  and proximal +
lanceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
cylindric +
Illustrated +  and Endemic +
light-redbrown +
lanciform +
5 cm50 mm <br />0.05 m <br /> (?) +
2 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.8 cm8 mm <br />0.008 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
curled-setose +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
cleft +, 2-fid +  and undivided +
Dichromena +  and Psilocarya +
Rhynchospora crinipes +
Rhynchospora +
species +
sulcate +  and 2-edged +
flattened +  and triangular +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
plant +, cespitose +  and solitary +