Juncus subcaudatus

(Engelmann) Coville & S. F. Blake

Proceedings of the Biological Society of Washington 31: 45. 1918.

Basionym: Juncus canadensis var. subcaudatus Engelmann Trans. Acad. Sci. St. Louis 2: 474. 1868
Synonyms: Juncus subcaudatus var. planisepalus Fernald
Treatment appears in FNA Volume 22.

Herbs, perennial, cespitose, 1.5–6 dm. Culms erect, 1–3 mm diam., smooth. Cataphylls 0–1, straw-colored, apex acute. Leaves: basal 1, cauline 1–3; auricles 0.5–1 mm, apex rounded, scarious; blade terete, 4.5–15 cm × 1–2 mm. Inflorescences panicles or racemes of 3–35 heads, 2–16 cm, branches widely spreading (at least the proximalmost); primary bract erect; heads 2–10(–20)-flowered, obconic to nearly spheric, 3–9 mm diam. Flowers: tepals greenish, becoming straw-colored, lanceolate; outer tepals 1.8–3 mm, apex acuminate; inner tepals 2–3.2 mm, apex acuminate; stamens 3, anthers 1/3 filament length. Capsules exserted, straw-colored, imperfectly 3-locular, ovoid to prismatic, 3–3.8 mm, apex acute proximal to beak, valves separating at dehiscence. Seeds ellipsoid, 0.7–1.2 mm, tailed; body covered with whitish translucent veil.

Phenology: Fruiting late summer–fall.
Habitat: Stream banks, lake and pond shores, bogs, and other wet places
Elevation: 0–1000 m


V22 504-distribution-map.jpg

Nfld. and Labr. (Nfld.), N.S., Ala., Ark., Conn., Del., D.C., Ga., Ill., Ky., Maine, Md., Mass., Mo., N.J., N.Y., N.C., Ohio, Pa., R.I., Tenn., Va., W.Va.


Selected References


Lower Taxa

... more about "Juncus subcaudatus"
Ralph E. Brooks* +  and Steven E. Clemants* +
(Engelmann) Coville & S. F. Blake +
Juncus canadensis var. subcaudatus +
Nfld. and Labr. (Nfld.) +, N.S. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ky. +, Maine +, Md. +, Mass. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, Tenn. +, Va. +  and W.Va. +
0–1000 m +
Stream banks, lake and pond shores, bogs, and other wet places +
Fruiting late summer–fall. +
Proceedings of the Biological Society of Washington +
Juncus subcaudatus var. planisepalus +
Juncus subcaudatus +
Juncus subg. Septati +
species +