Juncus capillaris

F. J. Hermann

Leaflets of Western Botany 5: 116. 1948.

Common names: Hair-stemmed dwarf rush
Endemic
Treatment appears in FNA Volume 22.

Herbs, annual, cespitose, 0.09–0.6 dm. Culms to 20. Leaves to 2.2 cm. Inflorescences headlike clusters, each with 1–2 flowers; bracts subtending inflorescence 2–4, ovate, inconspicuous, 0.8–1.5 mm, membranous, apex acute. Flowers: tepals 4–6, chestnut brown to black, 1.8–2.8 × 0.8–1.5 mm; inner series usually slightly longer than outer, apex acuminate to attenuate; stamens 2–3, filaments 0.6–1.1 mm, anthers 0.3–0.4 mm; style 0.1–0.3 mm, stigma 0.4–0.6 mm. Capsules tan or apex reddish, 2– or 3-locular, globose to obovoid, 1.2–2 × 1.1–1.5 mm, usually shorter than tepals. Seeds ellipsoid-ovoid, 0.5–0.8 mm. n = 18.


Phenology: Flowering spring–mid summer.
Habitat: Moist, bare flats, short turf, and mossy areas in meadows, stream banks, and seepage areas on outcrops (usually granite)
Elevation: 1200–3200 m

Discussion

Juncus capillaris occurs in California in the Sierra Nevada and in Oregon in the Steens Mountains.

Selected References

None.

Lower Taxa

None.
... more about "Juncus capillaris"
Ralph E. Brooks* +  and Steven E. Clemants* +
F. J. Hermann +
Hair-stemmed dwarf rush +
Calif. +  and Oreg. +
1200–3200 m +
Moist, bare flats, short turf, and mossy areas in meadows, stream banks, and seepage areas on outcrops (usually granite) +
Flowering spring–mid summer. +
Leaflets of Western Botany +
Juncus sect. Graminifolii +
Juncus capillaris +
Juncus subg. Graminifolii +
species +