Page author: David Giblin
Holodiscus discolor
creambush ocean-spray, hillside oceanspray
WTU specimens
Other herbaria

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to south California, east to the Rocky Mountains.

Habitat: Gravelly soil in open, dry to moist woods, coastal bluffs to moderate elevations in the mountains.

Flowers: June-August

Origin: Native

Conservation Status: Not of concern


Deciduous shrub, 1-3 m. tall, the branches slender, arching, the bark deep reddish-gray.


Leaf blades broadly ovate to ovate-lanceolate, 4-7 cm. long, green above and paler and woolly below, with 15-25 lobes, the lobes with fine teeth; leaves alternate, the petioles 10-15 mm. long.


Inflorescence a diffuse, pubescent panicle, 10-17 cm. long; calyx saucer-shaped, deeply 5-lobed; flowers about 5 mm. broad, the 5 oval, creamy-white petals slightly exceeding the sepals; stamens 20; pistils 5, 1.5 mm. long.


Achene 2 mm. long, covered with short, stiff hairs.

Accepted Name:
Holodiscus discolor (Pursh) Maxim.
Publication: Trudy Imp. S.-Peterburgsk. Bot. Sada 6(1): 254. 1879.

Holodiscus boursieri (Carr.) Rehd.
Holodiscus discolor (Pursh) Maxim. var. discolor
Schizonotus aariaefolius Green var. discolor Kuntze
Schizonotus discolor Raf.
Sericotheca discolor (Pursh) Rydb.
Sericotheca discolor var. purshianus Rehd.
Spiraea ariaefolia Smith
Spiraea discolor Pursh var. ariaefolia Wats.
Additional Resources:

PNW Herbaria: Specimen records of Holodiscus discolor in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Holodiscus discolor checklist entry.

E-Flora BC: Holodiscus discolor atlas page.

CalPhotos: Holodiscus discolor photos.

USDA Plants: Holodiscus discolor information.

73 photographs:
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