familyCyperaceae
genusEleocharis
subgenusEleocharis subg. Eleocharis
sectionEleocharis sect. Eleocharis
speciesEleocharis tenuis
Eleocharis tenuis var. tenuis
Common names: Éléocharide grêle
IllustratedEndemic
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](/w/images/c/ca/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.
"shortened" is not a number.
... more about "Eleocharis tenuis var. tenuis"
cancellate +
falling +
rugulose +
terete;trigonous;biconvex +
0.4mm;2mm +
equaling +
5;4 +
0.45mm;0.7mm +
brown +
basifixed +
entire +
reddish +
callose +
carinate;notched;rounded;obtuse;acute +
persistent +
absent +
1;many +
2;3 +
internal +
Éléocharide grêle +
persistent +
sulcate +
firm;soft +
0mm;0.35mm +
not splitting +
disintegrating +
persistent +
basal +
abundant +
dark-brown +
appressed +
medium +
single +
bisexual +
5;6 +
Present +
pseudoumbel +
modified +
absent +
basal +
absent +
fused +
ovate +
1 cm10 mm <br />0.01 m <br /> (?) +
flattened +
spinulose +
absent +
slender +
falling +
absent +
with (1-)3-6(-30) bristles and/or scales +
thin +
2-3(-4)-carpellate +
fused +
pistillate +
subtending +
amplexicaulous +
stramineous;medium brown or red brown or blackish brown +
Mant. +
1824 +
absent +
evident +
caudex-like +
soft;hard +
horizontal +
6;10 +
sharp +
adventitious +
fibrous +
empty +
arranged +
4;500 +
rugulose +
fertile +
trigonous;obpyriform +
incomplete +
transverse +
vertical +
cylindric +
single +
ovoid +
1.5mm;2mm +
distinct +
papillate +
undivided +
3-fid +
Eleocharis tenuis var. tenuis +
Eleocharis tenuis +
variety +
free +
thin +
absent +
depressed-apiculate +
brown +
distinct +
0.05mm;0.3mm +
rudimentary +
depressed +
stoloniferous +
perennial +
proliferating +
5;100 +