Cyperus lupulinus

(Sprengel) Marcks

Trans. Wisconsin Acad. Sci. 62: 275. 1974.

Basionym: Cyperus filiculmis var. macilentus Fernald Rhodora 8: 128. 1906
Synonyms: Cyperus macilentus (Fernald) E. P. Bicknell
Treatment appears in FNA Volume 23. Treatment on page 177. Mentioned on page 176.
Revision as of 20:06, 16 December 2019 by FNA>Volume Importer

Culms (3–)10–30(–40) cm × 0.4–0.8 mm. Leaves 5–20 cm × 0.8–2.7 mm. Inflorescences: spikes densely ovoid, 8–16 mm; rays 0 or 1–3, 1–4 cm; bracts 2–4, 4–15 cm. Spikelets 20–60, 3–7 × 2.5–3.5 mm; floral scales 3–7, 1.8–2.5 × 1.4–1.8 mm, margins clasping achene, apex mucronate, mucro 0.05–0.2 mm. Achenes 1.4–1.8 × 0.6–0.9 mm.


Phenology: Fruiting summer
Habitat: Various well-drained, open places
Elevation: 0–1000 m

Distribution

V23 295-distribution-map.jpg

N.B., N.S., Ont., Que., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Maine, Md., Mass., Mich., Minn., Nebr., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., Vt., Va., W.Va., Wis.

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

... more about "Cyperus lupulinus"
Gordon C. Tucker* +, Brian G. Marcks* +  and J. Richard Carter * +
Linnaeus +
Ont. +, Ark. +, Colo. +, Conn. +, Del. +, Idaho +, Ill. +, Ind. +, Kans. +, Ky. +, Mass. +, Mich. +, Minn. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Oreg. +, Pa. +, R.I. +, Tenn. +, Tex. +, Vt. +, Va. +, W.Va. +  and Wis. +
0–1700 m +
Well-drained, open roadsides, fields, prairies +
Fruiting summer +
Sp. Pl. +  and Gen. Pl. ed. +
1753 +  and 1754 +
Cyperus bushii +
Cyperus lupulinus +
Cyperus subg. Cyperus +
species +