Distribution: Occurring in the Columbia River Gorge in Washington; southern Washington to California.
Habitat: Lowland and montane meadows and stream banks, parasitic on Asteraceae, mainly on Erigeron and Symphyotrichum.
Flowers: June-July
Origin: Native
Growth Duration: Annual
Conservation Status: Endangered in Washington (WANHP)
Pollination: Bees
[none provided]
PNW Herbaria: Specimen records of Aphyllon californicum ssp. grayanum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Aphyllon californicum ssp. grayanum checklist entry
OregonFlora: Aphyllon californicum ssp. grayanum information
E-Flora BC: Aphyllon californicum ssp. grayanum atlas page
CalPhotos: Aphyllon californicum ssp. grayanum photos