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|Jepson eFlora: Taxon page
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|Family: Juncaceae||View Description||Dichotomous Key|
|Genus: Juncus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Juncus acutus L. subsp. leopoldii (Parl.) Snogerup
Habit: Perennial herb, cespitose, 50--140 cm; rhizome many-branched. Stem: rigid, hardened, cylindric. Leaf: basal, 40--120 cm, rigid; tip stiff, sharp; sheath appendages firm. Inflorescence: appearing lateral, generally +- open; lowest bract cylindric, resembling stem, <= inflorescence; branches uneven; clusters 2--4-flowered, each subtended by 1 obvious, clasping bract; bractlets 0. Flower: perianth 2--4 mm, margins membranous, sepals thin, obtuse, petals +- rounded; anthers 6, >> filaments, +- red-brown. Fruit: generally >> perianth, +- spheric to elliptic, shiny brown. Seed: irregular, occasionally narrowly winged; appendages <= 0.3 mm. Chromosomes: 2n=48.
Ecology: Moist saline places, salt marshes, alkaline seeps; Elevation: generally < 300 m. Bioregional Distribution: CCo, SCo, s ChI, WTR, DSon; Distribution Outside California: to Arizona, Baja California, South America, Africa. Fruiting Time: Jun--Aug Note: Typical subsp. in Mediterranean, northern Africa, introduced in Australia, New Zealand.
eFlora Treatment Author: Peter F. Zika
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Juncus acuminatus
Next taxon: Juncus ambiguus
Citation for this treatment: Peter F. Zika 2016. Juncus acutus subsp. leopoldii, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=51088, accessed on February 08, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 08, 2016.