Juncus scirpoides


in J. Lamarck et al., Encycl. 3: 267. 1789.

Common names: Scirpuslike rush
Synonyms: Juncus echinatus Muhlenberg Juncus scirpoides var. compositus Harper Juncus scirpoides var. genuinus Buchenau Juncus scirpoides var. macrostemon Engelmann Juncus scirpoides var. meridionalis Buchenau
Treatment appears in FNA Volume 22.

Herbs, perennial, rhizomatous, tosometimes nearly cespitose, 0.8–7 dm. Rhizomes usually tuberous, 2–4 mm diam. Culms erect, terete, 1–3 mm diam., smooth. Cataphylls 0–1. Leaves: basal 1–2, cauline 2–3, green; auricles 1–2 mm, apex rounded, membranaceous; blade terete, 2–23 cm × 1–2 mm, distal cauline leaf blade 1.6–26 cm, equaling or longer than sheath. Inflorescences terminal panicles of 1–23(–32) heads, 2.5–9 cm, branches ascending to erect; primary bracts erect; heads 20–60-flowered, spheric or usually lobed, 6–11 mm diam. Flowers: tepals green to straw-colored, lance-subulate, 2–3.5 mm, nearly equal, apex acuminate; stamens 3, anthers 1/3 filament length. Capsules exserted, straw-colored, 1-locular, lance-subulate, 3–4 mm, apex tapering, remaining attached at tip, valves not separating at dehiscence, fertile throughout or only proximal to middle. Seeds oblong, 0.4 mm, not tailed; body clear yellow-brown.

Phenology: Fruiting early summer–fall.
Habitat: Wet sandy soil, salt marshes, lake shores, ditches, meadows, wet woods
Elevation: 0–1400 m


V22 207-distribution-map.jpg

Ala., Ark., Del., D.C., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Mich., Miss., Mo., Nebr., N.J., N.Y., N.C., Okla., Pa., S.C., Tenn., Tex., Va., W.Va.


Selected References


Lower Taxa

... more about "Juncus scirpoides"
Ralph E. Brooks* +  and Steven E. Clemants* +
Lamarck +
Scirpuslike rush +
Ala. +, Ark. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Md. +, Mich. +, Miss. +, Mo. +, Nebr. +, N.J. +, N.Y. +, N.C. +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +  and W.Va. +
0–1400 m +
Wet sandy soil, salt marshes, lake shores, ditches, meadows, wet woods +
Fruiting early summer–fall. +
in J. Lamarck et al., Encycl. +
Illustrated +  and Endemic +
Juncus echinatus +, Juncus scirpoides var. compositus +, Juncus scirpoides var. genuinus +, Juncus scirpoides var. macrostemon +  and Juncus scirpoides var. meridionalis +
Juncus scirpoides +
Juncus subg. Septati +
species +