Native to Alaska, Aleutian Is., British Columbia, California, Idaho, Montana, Oregon, Washington; introduced into Belgium, Denmark, Finland, Germany, Great Britain, Ireland, Netherlands, Norway, Sweden, Switzerland (source: POWO). Flora of the World documents 2 occurrences across 1 country.
Location
United States, Idaho, Benewah
47.3545, -116.376944
Location Remarks
Reeds Gulch Rd. to FSR 550, to the N of Calder-Avery Rd. (=NF 50). 9.8 km toward Baldy Peak. Elev. 1238 m.
Collectors
Christopher Davidson, Sharon R. Christoph, Bill Rember
Notes
Shade, roadside bog in a barrow pit along the road. Doug fir forest.
Location
United States, Washington, Grays Harbor
47.466111, -123.846111
Location Remarks
Quinault Rain Forest, trails in the coniferous forest southeast of Lake Quinault Lodge.
Collectors
No collectors specified
Kingdom
Plantae
Phylum
Tracheophyta
Class
Liliopsida
Order
Alismatales
Family
Araceae
Genus
Lysichiton
Specific Epithet
americanus
Authorship
Hultén & H.St.John
What is EDGE?
Evolutionary distinctiveness
Moderate
ED 10.9
Moderately distinct — it has closer living relatives than the most isolated species.
Threat status
IUCN Red List
EDGE score
0.6
Global rank
#83,863 of 335,497
Top 25%
Extinction probability
6%