Juncus brachycephalus

Herbs, perennial, cespitose, 2–7 dm. Culms erect, 1–4 mm diam., smooth. Cataphylls 1–2, straw-colored to pink, apex acute. Leaves: basal 1–3, cauline 1–2; auricles 0.6–1.5 mm, apex rounded, scarious; blade terete to compressed, 0.2–12 cm × 0.5–2 mm. Inflorescences panicles of 5–80 heads, 5–25 cm, branches ascending; primary bract erect; heads 2–6-flowered, ellipsoid to obovoid, 2–5 mm diam. Flowers: tepals green to light brown, lanceolate; outer tepals 1.8–2.5 mm, apex obtuse to nearly acute; inner tepals 2–2.8 mm, apex obtuse to nearly acute; stamens 3 or 6, anthers 1/2 filament length. Capsules exserted, chestnut to dark brown, imperfectly 3-locular, obconic, 2.4–3.8 mm, apex acute proximal to beak, valves separating at dehiscence. Seeds ellipsoid to fusiform, 0.8–1.2 mm, tailed; body covered with whitish translucent veil. 2n = 80.

Phenology: Fruiting summer–early fall.
Habitat: Calcareous marshes, wet meadows, and wetland shores
Elevation: 100–200 m

Distribution

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N.B., N.S., Ont., Que., Ala., Colo., Conn., Ga., Ill., Ind., Maine, Mass., Mich., Minn., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Okla., Pa., Tenn., Vt., Va., W.Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.