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

  • Up-to-date information about California vascular plants is available from 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 from horizontal rhizome at soil surface or deep, ± vertical rhizome, spreading or clumped, gingery-aromatic
Leaves basal or arising singly from rhizome, generally evergreen; blade cordate to reniform
Inflorescence: flower terminal, at ground level
Flower radial, generally dark colored; sepals 3, persistent, adherent into a tube or fused; stamens 12, free from style
Fruit: fleshy capsule
Seed with fleshy appendage, dispersed by ants
Species in genus: 90 species: n temp
Etymology: (Greek: derivation unknown)


A. lemmonii S. Watson

Plant generally spreading, forming loose mat; rhizome near soil surface, horizontal
Leaf: blade uniformly green
Inflorescence: peduncle bent downward in flower
Flower: calyx tube inner surface white, generally not striped (rarely with a partial median stripe), lobes 0.8–1.5 cm, strongly reflexed in flower, appressed to tube, obtuse, acute, or abruptly soft-pointed, red; anther tip < pollen sac
Chromosomes: 2n=26
Ecology: Shady wet places
Elevation: 1100–1900 m.
Bioregional distribution: High Sierra Nevada.KR (McCloud River) plants with tapered calyx lobes are A. caudatum
Horticultural information: IRR, DRN, SHD: 1, 2, 4, 5, 6, 7, 14, 15, 16, 17; GRCVR.

previous taxon | next taxon
bioregional map for ASARUM%20lemmonii being generated

Retrieve Jepson Interchange Index to Plant Names entry for Asarum lemmonii
Retrieve dichotomous key for Asarum
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page

University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California