Scheuchzeria palustris

Linnaeus
Sp. Pl. 1: 338. 1753.
Common names: Scheuchzérie palustre
Illustrated
Synonyms: Scheuchzeria palustris var. americana Fernald Scheuchzeria palustris subsp. americana (Fernald) Hultén Scheuchzeria americana
Treatment appears in FNA Volume 22.

Herbs, glabrous. Rhizomes creeping, jointed, freely branching. Stems flexuous, zigzag, 1–4 dm. Leaves striate; cauline leaves gradually reduced to bracts; sheaths 1.5–10 cm, ligules 2–12 mm; hairs within leaf sheath 0.2–2 cm; blade 2–41 cm × 1–3 mm. Inflorescences 3–12-flowered, 3–10 cm; proximal bract foliaceous; distalmost sheaths sometimes bladeless; pedicels spreading, 5–25 mm. Flowers: tepals in 2 similar series of 3 each, white to yellow-green, lance-ovate to lanceolate, 1-veined, 2–3 mm, membranous, apex acute; filaments filiform; anthers linear, elongate; pistils 6–7 mm; styles oblong; stigmas papillose. Follicles light green to brown, ovoid, 4–10 mm, leathery, dehiscing on curved, adaxial side; beak 0.5–1 mm. Seeds brown to black, ovoid, 4–5 mm, smooth, hard; endosperm absent. 2n = 22.


Phenology: Flowering in late spring.
Habitat: Sphagnum bogs, marshes, and lake margins
Elevation: 0–2000 m

Distribution

V22 226-distribution-map.jpg

Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., Que., Sask., Yukon, Alaska, Calif., Conn., Idaho, Ill., Ind., Iowa, Maine, Mass., Mich., Minn., Mont., N.H., N.J., N.Y., N.Dak., Ohio, Oreg., Pa., R.I., Vt., Wash., W.Va., Wis., Eurasia.

Discussion

North American representatives of this species have been regarded as being varietally distinct from Eurasian plants on the basis of follicle and stigma characters (M. L. Fernald 1923). Variability in those characters, in specimens from both hemispheres, vitiates their worth for varietal distinction.

Lower Taxa

None.

... more about "Scheuchzeria palustris"
Mark A. Nienaber +
Linnaeus +
Scheuchzérie palustre +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Calif. +, Conn. +, Idaho +, Ill. +, Ind. +, Iowa +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, N.H. +, N.J. +, N.Y. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, R.I. +, Vt. +, Wash. +, W.Va. +, Wis. +  and Eurasia. +
0–2000 m +
Sphagnum bogs, marshes, and lake margins +
Flowering in late spring. +
cody1975a +  and fernald1923a +
Illustrated +
Scheuchzeria palustris var. americana +, Scheuchzeria palustris subsp. americana +  and Scheuchzeria americana +
Scheuchzeria palustris +
Scheuchzeria +
species +