Juncus bolanderi

Engelmann

2:436, 470. 1868.

Synonyms: Juncus bolanderi var. riparius Jepson
Treatment appears in FNA Volume 22.

Herbs, perennial, not cespitose, rhizomatous, 2.5–8.5 dm. Rhizomes 2–3 mm, tuberous. Culms erect, terete, 1–3 mm diam., smooth. Cataphylls 1–2, straw-colored, apex acute. Leaves: basal 0–1, cauline 2–3, auricles 2–3 mm, apex acute, membranaceous; blade green to straw-colored, terete, 7–28 cm × 1–2 mm. Inflorescences terminal racemes of 1–8 heads or single head, 1–13 cm, branches ascending to spreading; primary bract erect; heads 40–70-flowered, spheric, 7–11 mm diam. Flowers: tepals dark reddish brown to light brown, lance-subulate, (2.6–)3–3.5(–4) mm, apex acuminate; stamens 3, anthers 1/4 filament length. Capsules equaling perianth or slightly included, chestnut brown, 1-locular, ellipsoid to oblong, 3–3.5 mm, apex acuminate, valves separating at dehiscence, fertile throughout or only proximal to middle. Seeds oblong, 0.4–0.5 mm, not tailed; body clear yellow-brown.


Phenology: Fruiting late spring–summer.
Habitat: Swamps, marshes, stream banks, beaches, roadside meadows, and other moist or wet areas
Elevation: 0–1000 m.

Distribution

V22 304-distribution-map.jpg

B.C., Calif., Idaho, Oreg., Wash., nw Mexico.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Juncus bolanderi"
Ralph E. Brooks* +  and Steven E. Clemants* +
Engelmann +
B.C. +, Calif. +, Idaho +, Oreg. +, Wash. +  and nw Mexico. +
0–1000 m. +
Swamps, marshes, stream banks, beaches, roadside meadows, and other moist or wet areas +
Fruiting late spring–summer. +
Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen +
Juncus bolanderi var. riparius +
Juncus bolanderi +
Juncus subg. Septati +
species +