Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Asarum hartwegii

Hartweg's wild ginger
Rhizomes

erect or ascending, deeply buried, internodes 0.2-1.3 cm.
Leaves

blade almost always variegate with white or silver along veins, cordate to cordate-reniform, 5.3-10 × 7-14 cm, apex rounded-acute to rounded;

surfaces abaxially appressed-hirsute, usually sparsely so, adaxially glabrous or sparsely hirsute along veins, marginal hairs strongly curved toward apex.
Flowers

erect;

peduncle 1-2.
Calyx

tube cylindric, externally reddish, sometimes mottled red and green, hirsute, internally white with brownish purple stripes and white hairs (becoming brown with age);

distal portion of sepal usually spreading at anthesis, sometimes reflexed or nearly erect, 12-27 mm, apex filiform-attenuate, abaxially reddish, hirsute, adaxially reddish, puberulent with crisped pale hairs;

pollen sacs 2 mm, sterile tip of connective on inner stamens pale (sometimes dark in dried specimens), 3-5 mm, longer than pollen sacs.
2n

= 26.

Asarum hartwegii
Phenology Flowering spring–summer (Apr–Jul).
Habitat Rocky slopes in dry conifer or oak forests
Elevation 150-2200 m (500-7200 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Asarum hartwegii was confused with A. marmoratum until very recently; reports of A. hartwegii from southern Oregon are errors for A. marmoratum (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. lemmonii, A. marmoratum, A. wagneri
Name authority S. Watson: Proc. Amer. Acad. Arts 10: 346. (1875)
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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora

The species comparison tool is brought to you by:
Northwest Wildflowers