Juncus validus


Bulletin of the Torrey Botanical Club 22:305. 1895.

Basionym: Juncus crassifolius Buchenau Bot. Jahrb. Syst. 12: 326. 1890,
Treatment appears in FNA Volume 22.

Herbs, perennial, rhizomatous, sometimes to nearly cespitose, 4–10 dm. Rhizomes not tuberous, 2 mm diam. Culms erect, terete, 3–5 mm diam., smooth. Cataphylls 0. Leaves: basal 2–3(–6), cauline 1–4; auricles 1–3 mm, apex acute, membranaceous, absent on proximal leaves; blade green, laterally compressed, 9–70 cm × 2–6 mm. Inflorescences terminal panicles of 10–30 heads, 10–30 cm, branches spreading; primary bract erect; heads 20–30-flowered, spheric, (10–)12–15 mm diam. Flowers: tepals green to reddish, lance-subulate, 4–5 mm, apex acuminate; stamens 3, anthers 1/3–1/2 filament length. Capsules exserted, straw-colored, 1-locular, subulate, 4–5,5 mm, tapering to subulate tip, valves separating or not at dehiscence; fertile throughout or only proximal to middle.. Seeds broadly ellipsoid, 0.5–0.6 mm, not tailed; body clear yellow-brown.


V22 288-distribution-map.jpg

Ala., Ark., Fla., Ga., Kans., La., Miss., Mo., N.C., Okla., S.C., Tenn., Tex., Va.


Varieties 2 (2 in the flora).

Selected References



1 Inflorescence 10–30 cm; heads 20–30-flowered; capsule fully separating at apex after dehiscence Juncus validus var. validus
1 Inflorescence 2–5 cm; heads 6–15-flowered; capsule remaining united at apex after dehiscence Juncus validus var. fascinatus
... more about "Juncus validus"
Ralph E. Brooks* +  and Steven E. Clemants* +
Coville +
Juncus crassifolius +
Ala. +, Ark. +, Fla. +, Ga. +, Kans. +, La. +, Miss. +, Mo. +, N.C. +, Okla. +, S.C. +, Tenn. +, Tex. +  and Va. +
Bulletin of the Torrey Botanical Club +
Juncus sect. Septati +
Juncus validus +
Juncus subg. Septati +
species +