Page authors: Don Knoke, David Giblin
Rhododendron macrophyllum
California rhododendron, Pacific rhododendron
WTU specimens
Other herbaria

Distribution: Occurring west of the Cascades crest in Washington; British Columbia south to California.

Habitat: Moist woods, sea level to moderate elevations in the mountains.

Flowers: May-July

Origin: Native

Conservation Status: Not of concern

Description:
General:

Evergreen shrubs 1-5 m. tall, the branches puberulent when young, becoming glabrate.

Leaves:

Leaves alternate, leathery, glabrous, entire, oblong-elliptic, 8-20 cm. long.

Flowers:

Flowers many in terminal, somewhat flat-topped inflorescences; pedicels glabrous; calyx minute; corolla united, narrowly bell-shaped, 2.5-4 cm. long, pale pink to deep rose-purplish, deeply 5-lobed, the lobes spreading, wavy; stamens 10, unequal, the longer ones exerted, filaments sparsely short-hairy on the lower half; ovary superior, hairy.

Fruits:

Capsule 4- or 5-celled, short, with heavy walls

Accepted Name:
Rhododendron macrophyllum D. Don ex G. Don
Publication: Gen. Hist. 3: 843. 1834. 1834.

Synonyms:
Rhododendron californicum Hook.
Additional Resources:

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

WA Flora Checklist: Rhododendron macrophyllum checklist entry.

E-Flora BC: Rhododendron macrophyllum atlas page.

CalPhotos: Rhododendron macrophyllum photos.

USDA Plants: Rhododendron macrophyllum information.

32 photographs:
Group by