Eleocharis flavescens var. olivacea

(Torrey) Gleason

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
Treatment appears in FNA Volume 23. Treatment on page 101. Mentioned on page 97, 100.

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

V23 150-distribution-map.jpg

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.
Francis J. Menapace +
(Torrey) Gleason +
Eleocharis olivacea +
Green spikerush +  and éléocharide olivâtre +
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. +  and Wis. +
0–1000 m +
Bogs, cold springs, dry stream banks, lake and pond margins, maritime mud flats, marshes, moist meadows, swamps +
Fruiting summer–winter (Jun–Nov). +
Illustrated +  and Endemic +
Eleocharis olivacea var. reductiseta +
Eleocharis flavescens var. olivacea +
Eleocharis flavescens +
variety +