familyCyperaceae
genusEleocharis
subgenusEleocharis subg. Eleocharis
sectionEleocharis sect. Eleogenus
speciesEleocharis flavescens
Eleocharis flavescens var. olivacea
Phytologia 4: 22. 1952.
Common names: Green spikerush éléocharide olivâtre
IllustratedEndemic
Basionym: Eleocharis olivacea Torrey Ann. Lyceum Nat. Hist. New York 3: 300. 1836
Synonyms: Eleocharis olivacea var. reductiseta (Schuyler & Ferren) Schuyler & Ferren
Revision as of 21:31, 27 May 2020 by imported>Volume Importer
Culms to 28 cm. Floral scales brown, streaked with green on flanks. Flowers: perianth bristles to 2 times as long as achene, rarely shorter than achene. Achenes green to golden brown when ripe, 0.5–1.1 × 0.4–0.8 mm, apex often highly constricted proximal to tubercle. Tubercles 0.3–0.7 × 0.2–0.4 mm. 2n = 20.
Phenology: Fruiting summer–winter (Jun–Nov).
Habitat: Bogs, cold springs, dry stream banks, lake and pond margins, maritime mud flats, marshes, moist meadows, swamps
Elevation: 0–1000 m
Distribution
N.B., N.S., Ont., Que., Ark., Conn., Del., Fla., Ga., Ill., Ind., La., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tex., Vt., Va., Wis.
Discussion
Eleocharis flavescens var. olivacea was reported from Hawaii; I have not seen a voucher specimen.
Selected References
None.
Lower Taxa
None.