Flora of North America species comparison

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Asarum marmoratum

marbled wild-ginger
Rhizomes

erect or ascending, deeply buried, internodes 0.2-1.5 cm.
Leaves

blade almost always variegate with white or silver along veins, cordate to cordate-reniform, 4-14 × 3-12 cm, apex acute to broadly acuminate, rarely obtuse;

surfaces abaxially sparsely hirsute, adaxially glabrous or sparsely hirsute along veins, marginal hairs ± perpendicular to margin.
Flowers

erect or nearly so;

peduncle 1.2-1.
Calyx

tube subglobose, externally mottled red, sparsely to moderately hirsute, internally dark red, with purple hairs;

distal portion of sepal erect or spreading at anthesis, 17-52 mm, apex filiform-attenuate, abaxially pale green, hirsute, adaxially tan or brownish green, rarely red proximally, puberulent with crisped purple hairs;

pollen sacs 0.8-2.4 mm, sterile tip of connective on inner stamens dark red-brown, 1.2-3.8 mm, longer than pollen sacs.

Asarum marmoratum
Phenology Flowering late winter–spring (Mar–Jun).
Habitat Understory of dry or mesic forests, or exposed rocky slopes or roadcuts
Elevation 200-1800 m (700-5900 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Asarum marmoratum is found only in the Cascades and the Siskiyou Mountains of southern Oregon and extreme northwestern California (M. R. Mesler and K. L. Lu 1990).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 3.
Parent taxa Aristolochiaceae > Asarum
Sibling taxa
A. canadense, A. caudatum, A. hartwegii, A. lemmonii, A. wagneri
Name authority Piper: Proc. Biol. Soc. Wash. 29: 99. (1916)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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