Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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ARISTOLOCHIACEAE

PIPEVINE FAMILY

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]

ASARUM

WILD-GINGER

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)

Native

A. marmoratum Piper

MARBLED WILD-GINGER


Leaf: blade generally marbled (rarely uniformly green), margin hairs ± perpendicular-spreading
Inflorescence: peduncle ± erect
Flower: calyx tube inner surface dark red with scattered dark hairs, lobes ± erect in flower, olive-brown; anther tip > pollen sac, dark
Ecology: UNCOMMON. Moist forests, exposed rocky slopes
Elevation: 200–1800 m.
Bioregional distribution: Klamath Ranges (n Del Norte, Siskiyou cos.)
Distribution outside California: sw Oregon
Horticultural information: TRY
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for ASARUM%20marmoratum being generated
 
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Retrieve Jepson Interchange Index to Plant Names entry for Asarum marmoratum
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