|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
For up-to-date information about California vascular plants, visit the Jepson eFlora.
In CA perennial herb, terrestrial or aquatic, from short, generally erect caudex, often monoecious; elsewhere shrub, vine, or growing on other plant
Stems sometimes above ground in addition to caudex
Leaves simple or compound, basal (or cauline and 2-ranked)
Inflorescence: generally spike, fleshy, generally ill-smelling; flowers generally many, bisexual or pistillate below, staminate above; bract subtending spike 1, generally showy (petal-like), generally > spike, sometimes sheathing
Flower: perianth parts 4 or 6, free or fused; stamens generally 0, 4, or 6, free or fused; ovary superior to half-inferior and sunken in inflorescence axis, chambers 13, stigma ± sessile
Genera in family: ± 110 genera, 1800 species: generally tropical, subtropical. Some cultivated for food (Colocasia , taro) or ornamental (Philodendron, Anthurium )
Reference: [Wilson 1960 J Arnold Arbor 41:4763]
Needle-like crystals in most tissues cause intense irritation when chewed; those of Dieffenbachia, dumb-cane, may induce temporary speechlessness.
Leaves basal; petiole < blade, stout; blade flat, ovate to oblanceolate
Inflorescence < bract; peduncle < leaves, stout; bract boat-shaped, base sheathing peduncle, partly enclosing inflorescence, deciduous
Flower bisexual; perianth parts 4, fused at base; ovary partly embedded in inflorescence axis, chambers 2
Species in genus: 2 species: ne Asia, w North America
Etymology: (Greek: loosening tunic, from deciduous bract)
Leaves appearing generally in spring after flower; blade 30150 cm, ± fleshy, midvein thick, graduated into thick, wide petiole
Inflorescence < 12 cm, ± 2.5 cm thick; peduncle 35 dm; bract < 20 cm, lemon-yellow
Flower yellow-green, ill-smelling
Fruit greenish white
Ecology: Uncommon. Marshy areas, stream edges, generally in coniferous forest
Elevation: < 1300 m.
Bioregional distribution: North Coast, San Francisco Bay Area
Distribution outside California: to Alaska, Montana, Idaho
Horticultural information: WET(fresh water): 4, 5 &SHD: 1, 2, 3, 6, 7, 14, 15, 16, 17, 18, 19.
|YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).|