Distribution: In Washington known from the Olympic Mountains and central Cascades east of the crest; Washington south to Oregon.
Habitat: Open, often rocky areas, mid- to high elevations in the mountains.
Flowers: July-August
Origin: Native
Conservation Status: Not of concern
Taprooted, mat-forming perennial, glandular-hairy throughout.
Leaves crowded, often in threes, 5-10 mm. long and scarcely 1 mm. wide, the margins strongly thickened.
Flowers solitary and sessile at the ends of the stems, often 6-parted; calyx with flat, papery intervals between the herbaceous segments, strongly glandular-hairy, the 5 lobes firm; corolla white, the tube about 1 cm. long, barely longer than the calyx, the 5 lobes about 5 mm. long; filaments short and unequally attached in the corolla tube, style 3-parted, 1-2 mm. long; ovary superior
Capsule 3 celled, with one seed in each cell.
PNW Herbaria: Specimen records of Phlox hendersonii in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Phlox hendersonii checklist entry.
E-Flora BC: Phlox hendersonii atlas page.
CalPhotos: Phlox hendersonii photos.
USDA Plants: Phlox hendersonii information.