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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 bulbosus L.
Habit: Perennial, matted if submerged when young, cespitose, 1--30 cm; rhizome short, thick or knobby, fragile. Stem: nodes often rooting, forming new plantlets; erect flowering-stems emergent or appear as water recedes. Leaf: early submerged leaves < 20 cm, hair-like; sheath appendages 1--2 mm, membranous; cauline blades generally < stem, cylindric, >= 1 cylindrical air chamber in ×-section, generally crosswalls complete. Inflorescence: lowest bract < inflorescence; clusters generally 3--16, 3--15-flowered. Flower: perianth parts 1.8--3.7 mm, petals <= sepals, ovate to lanceolate, dark; stamens generally 6, filaments >= anthers. Fruit: > perianth, oblong, tip blunt or truncate, 2--3.5 mm. Seed: 0.4--0.6 mm, ovoid, ends pointed; appendages minute.
Ecology: Marshes, ponds; Elevation: < 100 m. Bioregional Distribution: NCo (Mendocino Co.); Distribution Outside California: introd. OR to BC, e N.Am, Australasia; native to Eur, n Afr. Fruiting Time: Jun--Aug
Unabridged Synonyms: [Juncus supinus Moench]
eFlora Treatment Author: Peter F. Zika
Jepson Online Interchange
Previous taxon: Juncus bufonius var. occidentalis
Next taxon: Juncus capillaris
Citation for this treatment: Peter F. Zika 2017. Juncus bulbosus, in Jepson Flora Project (eds.) Jepson eFlora, Revision 3, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=29620, accessed on March 29, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on March 29, 2017.