Juncus orthophyllus

Coville

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

Common names: Straight-leaf rush
Endemic
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.

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

Distribution

V22 117-distribution-map.jpg

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

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Juncus orthophyllus"
0.24 cm2.4 mm <br />0.0024 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
persistent +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
papillose +
acute +, obtuse +  and acutish +
Ralph E. Brooks* +  and Steven E. Clemants* +
Coville +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.6 cm6 mm <br />0.006 m <br /> (?) +
Juncus longistylis var. latifolius +  and Juncus latifolius +
channeled;terete;flat +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Straight-leaf rush +
compressed +
B.C. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +  and Wash. +
1200–3500 m +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
arranged +  and cluster +
headlike +
Moist ground in mountain meadows +
pseudoaxillary +  and terminal +
cauline +  and basal +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
3 +  and 1 +
green;brown or purplish black +
persistent +
Flowering and fruiting late spring to summer. +
parietal +  and axile +
Contributions from the U. S. National Herbarium +
not tailed;ovoid +
0.6 cm6 mm <br />0.006 m <br /> (?) +
green;brown or purplish black +
persistent +
generally longer +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
Juncus sect. Graminifolii +
Juncus orthophyllus +
Juncus subg. Graminifolii +
species +
lanceolate +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +