Flora of North America species comparison

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Asarum wagneri
Asarum wagneri

green-flower wild ginger, long-tail wild ginger, wagner's wild ginger
Rhizomes

horizontal, ± deeply buried, internodes 0.5-2.1 cm.
Leaves

blade not variegate, broadly reniform to cordate-reniform, 3-8 × 4-11 cm, apex obtuse to rounded (broadly acute);

surfaces abaxially sparsely hirsute, adaxially sparsely hirsute only along veins, marginal hairs mostly curved toward apex.
Flowers

erect or ascending;

peduncle 0.8- calyx tube subglobose to cylindric-urceolate or urceolate, externally light green, sparsely to moderately hirsute, internally white or light green, bordered and occasionally striped with purple, with purple hairs;

distal portion of sepal spreading perpendicularly from base at anthesis, bent abruptly upward at midpoint, 8-20 mm, apex filiform-acuminate, abaxially white to pale green, sparsely villous to villous, adaxially white or light green, at least distally, bordered with purple and occasionally with purple band across base, puberulent with crisped purple-tipped hairs;

pollen sacs 1-2 mm, sterile tip of connective on inner stamens dark red, 0.25-1 mm, shorter than pollen sacs.

Asarum wagneri
Phenology Flowering spring–summer (May–Jul).
Habitat Understory of Abies forests and open boulder fields in Tsuga forests near timberline
Elevation 1500-3200 m (4900-10500 ft)
Distribution
from FNA
OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Asarum wagneri is endemic to the Cascade Range of pouthern Oregon (K. L. Lu and M. R. Mesler 1983).

(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. marmoratum
Synonyms A. caudatum var. viridiflorum
Name authority K. L. Lu & Mesler: Brittonia 35: 331. (1983)
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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