Juncus orthophyllus


Contributions from the U. S. National Herbarium 4: 207. 1893.

Common names: Straight-leaf rush
Basionym: Juncus longistylis var. latifolius Engelmann Trans. Acad. Sci. St. Louis 2: 496. 1868 Juncus latifolius (Engelmann) Buchenau 1890,
Treatment appears in FNA Volume 22.
Revision as of 20:29, 5 November 2020 by imported>Volume Importer
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Herbs, perennial, 2–4 dm. Rhizomes creeping. Culms compressed. Leaves: basal several, cauline 0–3; auricles, if present, 0.5–1 mm, apex acutish; blade flat, basal 10–40 cm × 1–6 mm, cauline blade reduced. Inflorescences glomerules, usually 3–12, each with 5–10 flowers, open; primary bract much shorter than inflorescence. Flowers: tepals brown, lanceolate, 5–6 mm, apex obtuse; outer series shorter, margins scarious, apex acute, minutely papillose; inner series with margins clear; stamens 6, filaments 0.5–1 mm, anthers 1.6–2.4(–3) mm; style 0.5–2 mm. Capsules tan, 3-locular, obovoid, 3–5 mm, shorter than perianth. Seeds ovoid, 0.6 mm, not tailed.

Phenology: Flowering and fruiting late spring to summer.
Habitat: Moist ground in mountain meadows
Elevation: 1200–3500 m


V22 117-distribution-map.jpg

B.C., Calif., Idaho, Mont., Nev., Oreg., Wash.


Selected References


Lower Taxa

... more about "Juncus orthophyllus"
Ralph E. Brooks* +  and Steven E. Clemants* +
Coville +
Juncus longistylis var. latifolius +  and Juncus latifolius +
Straight-leaf rush +
B.C. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +  and Wash. +
1200–3500 m +
Moist ground in mountain meadows +
Flowering and fruiting late spring to summer. +
Contributions from the U. S. National Herbarium +
Juncus sect. Graminifolii +
Juncus orthophyllus +
Juncus subg. Graminifolii +
species +