|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Perennial from corm or short, thick rhizome, aquatic, glabrous
Leaves simple, basal, generally submersed, petioled; blade expanded or not (if floating, blade elliptic to lanceolate)
Inflorescence: generally spike, terminal; branches 23(10), scapose above water, subtended by conspicuous, deciduous bract
Flower generally bisexual; perianth parts 06, generally petal-like; stamens 6 in 2 whorls or many; pistils generally 36, fused ± 1/22/3 length, simple above, separating in fruit, ovary superior, chamber 1, ovules 18, style short, stigmatic surface grooved
Fruit: follicles, leathery
Seeds several; embryo straight
Genera in family: 1 genus, ± 40 species: tropical Asia to Australia, s Africa.
Species in genus: ± 40 species: old world tropical (Asia, Australia), s Africa
Etymology: (Greek: from aquatic habitat)
Leaf: petiole long; blade elliptic, floating
Flower: perianth segment 1, base wide, white; stamens many
Elevation: < 150 m.
Bioregional distribution: c-w San Francisco Bay Area, s South Coast, expected elsewhere
Distribution outside California: native to s Africa
Widely cultivated for aquaria, often escaping but generally a waif.