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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Juncaceae||View Description||Dichotomous Key|
|Genus: Juncus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Juncus longistylis Torr.
Habit: Perennial herb 20--60 cm, rhizomatous. Stem: slender. Leaf: generally basal; sheath appendages obvious, generally rounded, > 1 mm; blade with flat side toward stem, < 1/2 stem, 1--3 mm wide, crosswalls 0; cauline leaves 1--3. Inflorescence: lowest bract 1--2 cm, membranous; flower clusters 1--4(5), 3--12-flowered. Flower: perianth parts 5--6 mm, sepals generally = petals, midvein broad, dark green, occasionally papillate, scarious margin wide; stamens 6, filaments < anthers. Fruit: < perianth, 3-angled, brown; beak short. Seed: 0.5 mm, narrow; appendages short. Chromosomes: 2n=40.
Ecology: Moist places in conifer forest; Elevation: 1800--2900 m. Bioregional Distribution: SNH, TR, PR, Wrn, W&I; Distribution Outside California: to British Columbia, Michigan, eastern Canada, New Mexico. Fruiting Time: Jul--Sep
eFlora Treatment Author: Peter F. Zika
Jepson Online Interchange
Previous taxon: Juncus lescurii
Next taxon: Juncus luciensis
Citation for this treatment: Peter F. Zika 2016. Juncus longistylis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=29677, accessed on July 30, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 30, 2016.