Rhododendron albiflorum
white rhododendron

Distribution: British Columbia to Oregon, east to Montana

Habitat: Moist, usually forested, slopes, mid- to high elevations in the mountains

Flowers: June - August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Deciduous shrubs 1-2 m. tall, the young twigs finely puberulent and covered with stiff, aligned reddish hairs, this same hairiness present on young leaves, bracts and calyx.


Leaves thin, deep, clear green on the upper surface, lighter beneath, elliptic-oblanceolate, nearly entire, frequently clustered toward the branch tips, 4-9 cm. long on petioles 5-10 mm. long.


Flowers in axillary clusters of 1-4 along the stems, white to ochroleucous; pedicels 1-1.5 cm. long, glandular pubescent and covered with coarse, stiff reddish hairs; sepals 5, distinct, leaf-like, pubescent with coarse, gland-tipped hairs and appressed, eglandular, reddish hairs; corolla united, 1.5-2 cm. broad, 5-lobed about the length, the lobes spreading, nearly equal, entire; stamens 10, exerted, the filaments densely hairy on the lower half; ovary superior, long-hairy.


Capsule 5-celled, pubescent, short.

Accepted Name:
Rhododendron albiflorum Hook.
Publication: Fl. Bor.-Amer. 2: 43, plate 133. 1834. 1834.

Synonyms & Misapplications:
Azaleastrum albiflorum (Hook.) Rydb.
Rhododendron albiflorum Hook. var. warrenii (A. Nelson) M.A. Lane
Additional Resources:

PNW Herbaria: Specimen records of Rhododendron albiflorum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Rhododendron albiflorum checklist entry.

E-Flora BC: Rhododendron albiflorum atlas page.

CalPhotos: Rhododendron albiflorum photos.

USDA Plants: Rhododendron albiflorum information.

58 photographs:
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