Common names: Éléocharide grêle
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 88. Mentioned on page 87.

Rhizomes 0.4–1 mm thick, soft to hard, longer internodes (2–) 5–10 mm, scales seldom decaying to fibers. Culms to 0.35 mm wide. Leaves: distal leaf-sheaths with or without apical tooth to 0.2 mm. Flowers: perianth bristles sometimes present. Achenes lemon yellow, stramineous, or yellow-green, finely rugulose and usually finely cancellate at 10–20X, with 8–12 (often obscure) depressions in each vertical series. Tubercles as high as wide or sometimes greatly depressed. 2n = 24.


Phenology: Fruiting summer.
Habitat: Freshwater shores, wet woods, bogs, ditches
Elevation: 10–1100 m

Distribution

V23 120-distribution-map.jpg

N.B., N.S., P.E.I., Que., Calif., Conn., Del., Ky., La., Maine, Md., Mass., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Vt., Va., W.Va.

Discussion

Occasionally plants of Eleocharis tenuis var. tenuis are found mostly submerged.

Selected References

None.

Lower Taxa

None.
yellow-green +, stramineous +  and lemon yellow +
terete;trigonous;biconvex +
color +  and texture +
green +, brown +, medium +, dark yellow +  and lemon yellow +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
prominent +  and evident +
alveolate +  and rugulose +
0.45mm;0.7mm +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
S. Galen Smith* +, Jeremy J. Bruhl* +, M. Socorro González-Elizondo* +  and Francis J. Menapace* +
(Willdenow) Schultes +
flattened +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
shortened +
persistent +
enlarged +
Scirpus tenuis +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
Éléocharide grêle +
persistent +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
5 cm50 mm <br />0.05 m <br /> (90 cm900 mm <br />0.9 m <br />) +
usually +  and terete +
firm;soft +
0mm;0.35mm +
red +, stramineous +, green +  and dark red +
N.B. +, N.S. +, P.E.I. +, Que. +, Calif. +, Conn. +, Del. +, Ky. +, La. +, Maine +, Md. +, Mass. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +  and W.Va. +
10–1100 m +
membranous +  and thinly papery +
hypogynous +  and subtending +
biconvex +  and trigonous +
Freshwater shores, wet woods, bogs, ditches +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
1 cm10 mm <br />0.01 m <br /> (?) +
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 summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
stramineous;medium brown or red brown or blackish brown +
ascending +  and horizontal +
caudex-like +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
adventitious +
green +, brown +, medium +, dark yellow +  and lemon yellow +
decaying to fibers +  and persistent +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
basal +  and proximal +
prominent +  and evident +
rugulose +
trigonous;obpyriform +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
papery +  and finely coarsely fibrous +
0.45mm;0.7mm +
cylindric +
Illustrated +  and Endemic +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1.5mm;2mm +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
Eleocharis +
Eleocharis tenuis var. tenuis +
Eleocharis tenuis +
variety +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
0.05mm;0.3mm +
depressed +
0.25mm +  and 0.4mm +
plant +  and mat-forming +