Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
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.



Michael R. Mesler and Karen Lu

Perennial from rhizome, woody vine, shrub, aromatic
Stem branched, sometimes nearly all underground
Leaves simple, basal, cauline, or arising singly from rhizome, alternate; blade generally cordate, entire
Inflorescence: flower generally solitary, axillary or terminal
Flower bisexual, radial or bilateral; sepals 3, free or fused; petals generally 0; stamens generally 6 or 12, free or fused to style; pistil generally 1, ovary generally inferior or partly so, chambers generally 6
Fruit: generally capsule
Seeds many
Genera in family: 10 genera, 600 species: mainly tropical, warm temp; some cultivated (Aristolochia , Asarum )
Reference: [Gregory 1956 Amer J Bot 43:110–122]



Perennial, woody vine
Stem generally climbing
Leaves cauline
Inflorescence: flower axillary
Flower bilateral, often foul smelling; sepals fused into a generally curved tube, deciduous, lobes 1–3; stamens 6, fused to style
Fruit: capsule
Seed flat
Species in genus: 500 species: generally tropical, warm temp
Etymology: (Greek: best birth, from use as medication in childbirth)


A. californica Torr.

Plant soft-hairy
Stem < 5 m, twining
Leaves deciduous; blade 3–15 cm, ovate-cordate to sagittate
Flower: fragrance metallic; calyx tube 2–4 cm, U-shaped, ± green or light brown, lined with a pink to red pad of thickened tissue, veins purple, lobes 3
Fruit: winged capsule
Chromosomes: 2n=28
Ecology: Streamsides, forest, chaparral
Elevation: < 700 m.
Bioregional distribution: North Coast Ranges, Cascade Range Foothills, n&c Sierra Nevada Foothills, Sacramento Valley, San Francisco Bay Area, n Outer South Coast Ranges.Pollinated by fungus gnats
Horticultural information: 5, 6, 15, 16, 17; SHD: 14 &IRR: 7, 8, 9, 10, 18, 19, 20, 21, 22, 23, 24.

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bioregional map for ARISTOLOCHIA%20californica being generated
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).

Retrieve Jepson Interchange Index to Plant Names entry for Aristolochia californica
Retrieve dichotomous key for Aristolochia
Overlay Consortium of California Herbaria specimen data by county on this map
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