Eleocharis flavescens var. flavescens

Common names: Pale spikerush
Illustrated
Synonyms: Eleocharis flavescens var. thermalis Eleocharis thermalis
Treatment appears in FNA Volume 23. Treatment on page 100. Mentioned on page 101.

Culms to 42 cm. Floral scales brown to stramineous. Flowers: perianth bristles vestigial to slightly exceeding achene, rarely longer. Achenes redbrown to dark-brown when ripe, 0.4–0.8 (–1.1) × 0.3–0.6 mm, apex rarely highly constricted proximal to tubercle. Tubercles 0.2–0.5 × 0.2–0.4 mm. 2n = 30.


Phenology: Fruiting mid spring–winter.
Habitat: Brackish creeks, canal banks, dune depressions, hammocks, hot springs, irrigation ditches, maritime mud flats, salt marshes
Elevation: 0–300(–1600) m

Distribution

V23 149-distribution-map.jpg

Ala., Ariz., Ark., Calif., Fla., Ga., Idaho, La., Miss., Mont., N.C., S.C., Tex., Utah, Va., Wyo., West Indies, South America

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
redbrown +  and dark-brown +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
obovoid;trigonous;biconvex +
0.3mm;0.6mm +
acute;acuminate +
constricted +
Francis J. Menapace +
(Poiret) Urban +
flattened +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
persistent +
enlarged +
Scirpus flavescens +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
Pale spikerush +
3 cm30 mm <br />0.03 m <br /> (42 cm420 mm <br />0.42 m <br />) +
0 cm0 mm <br />0 m <br /> (42 cm420 mm <br />0.42 m <br />) +
0.3mm;0.6mm +
Ala. +, Ariz. +, Ark. +, Calif. +, Fla. +, Ga. +, Idaho +, La. +, Miss. +, Mont. +, N.C. +, S.C. +, Tex. +, Utah +, Va. +, Wyo. +, West Indies +  and South America +
0–300(–1600) m +
brown +  and stramineous +
loosely appressed +  and appressed +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
hypogynous +  and subtending +
biconvex +  and trigonous +
Brackish creeks, canal banks, dune depressions, hammocks, hot springs, irrigation ditches, maritime mud flats, salt marshes +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
flattened +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
Fruiting mid spring–winter. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
not amplexicaulous +
stramineous;medium brown or red brown or blackish brown +
Symb. Antill. +
ascending +  and horizontal +
caudex-like +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
adventitious +
basal +  and proximal +
2-keeled +
cylindric +
Illustrated +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
ellipsoid +
1mm;3.5mm +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
3-fid +  and 2-fid +
Eleocharis flavescens var. thermalis +  and Eleocharis thermalis +
Eleocharis flavescens var. flavescens +
Eleocharis flavescens +
variety +
whitish;stramineous or green +
0.2mm;0.5mm +
compressed +
0.2mm +  and 0.4mm +
not +  and rhizomatous +
perennial +  and annual +