Page author: David Giblin
Trillium albidum
giant trillium, sessile trillium
WTU specimens
Other herbaria
WTU images
Distribution: Occurring west of the Cascades crest in Washington; Washington to California.
Habitat: Moist forests, oak-ash woodlands, thickets, and fields at low elevations.
Flowers: April-June
Origin: Native
Conservation Status: Sensitive in Washington (WANHP)
Description:
[none provided]
Accepted Name:
Trillium albidum J.D. Freeman
Publication: Brittonia. 27: 48, fig. 11. 1975.
Publication: Brittonia. 27: 48, fig. 11. 1975.
Synonyms & Misapplications:
Trillium chloropetalum (Torr.) Howell, misapplied [FNA26, HC]
Trillium chloropetalum (Torr.) Howell var. chloropetalum, misapplied [FNA26]
Trillium chloropetalum (Torr.) Howell var. chloropetalum, misapplied [FNA26]
Infraspecies:
• ssp. parviflorum – small-flowered trillium 
Occurring west of the Cascades crest in Washington; lowland western Washington to Willamette Valley, Oregon.
Occurring west of the Cascades crest in Washington; lowland western Washington to Willamette Valley, Oregon.Additional Resources:
PNW Herbaria: Specimen records of Trillium albidum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Trillium albidum checklist entry.
E-Flora BC: Trillium albidum atlas page.
CalPhotos: Trillium albidum photos.
USDA Plants: Trillium albidum information.
46 photographs:
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