Juncus nodatus

Coville in N. L. Britton and A. Brown
in N. L. Britton and A. Brown,Ill. Fl. N. U.S., ed. 2 1: 482. 1913.
Endemic
Basionym: Juncus robustus (Engelmann) Coville 1896,
Synonyms: Juncus acuminatus var. robustus Engelmann
Treatment appears in FNA Volume 22.

Herbs, perennial, cespitose, 3–10 dm. Roots without terminal tubers. Culms erect, terete, 4–6 mm diam., smooth. Cataphylls 1–2, straw-colored, apex acute. Leaves: basal 1–2, cauline 1–2; auricles 1.2–1.5 mm, apex rounded, scarious; blade straw-colored or green, terete, 20–65 cm × 1.1–3.5 mm, with prominent and conspicuous ringlike bands at position of cross partitions; distal cauline leaves reduced to 2.5 cm. Inflorescences terminal panicles of 30–250 heads, 8–12 cm, branches spreading; primary bract erect to ascending; heads 2–10-flowered, broadly obovoid to hemispheric, 0.3–0.5 mm diam. Flowers: tepals straw-colored, lance-subulate, apex acuminate; outer tepals 1.9–2.2 mm; inner tepals 1.7–2.1 mm; stamens 3, anthers equal filament length. Capsules exserted, straw-colored, 1-locular, ovoid, 1.9–2.5 mm, apex acute, valves separating at dehiscence. Seeds oblong or ellipsoid, 0.5–0.6 mm, not tailed; body clear yellow-brown.


Phenology: Fruiting late spring–late summer.
Habitat: Commonly in shallow water, marshy shores, sloughs, wet flatwoods, and savannas, bogs, ditches, wet woods, shores, in standing water to 3 ft 1 m deep
Elevation: 100–200 m

Distribution

V22 8-distribution-map.jpg

Ala., Ark., Fla., Ill., Ind., Kans., Ky., La., Mo., Okla., Tenn., Tex.

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Juncus nodatus"
Ralph E. Brooks* +  and Steven E. Clemants* +
Coville in N. L. Britton and A. Brown +
Juncus robustus +
Ala. +, Ark. +, Fla. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Mo. +, Okla. +, Tenn. +  and Tex. +
100–200 m +
Commonly in shallow water, marshy shores, sloughs, wet flatwoods, and savannas, bogs, ditches, wet woods, shores, in standing water to 3 ft 1 m deep +
Fruiting late spring–late summer. +
in N. L. Britton and A. Brown,Ill. Fl. N. U.S., ed. 2 +
Juncus acuminatus var. robustus +
Juncus nodatus +
Juncus subg. Septati +
species +