Difference between revisions of "Juncus bolanderi"
Trans. Acad. Sci. St. Louis 2: 436, 470. 1868.
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Latest revision as of 12:58, 14 March 2024
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
B.C., Calif., Idaho, Oreg., Wash., nw Mexico.
Discussion
Selected References
None.