Indicator Plants

Rhododendron albiflorum – white flowered rhododendron

Common Name

white flowered rhododendron

Alternate Common Names
  • Cascade azalea;
  • white rhododendron
Family

Ericaceae

Scientific Name

Rhododendron albiflorum

Soil Moisture Regime (SMR)
  • Moderately Dry (MD)
  • Medium (M)
Soil Nutrient Regime (SNR)
  • Poor (P)

Botanical Drawing

Hitchcock, C. Leo, and Arthur Cronquist. Flora of the Pacific Northwest: An Illustrated Manual © 1973. Reprinted with permission of the University of Washington Press.

General / Habitat
  • A shrub
  • Grows in moist forests and streambanks but also in relatively dry, exposed sites
  • Common at subalpine elevations
Key Identifying Characteristics
  • Form: Erect, 1-2.5 m tall, young twigs covered in reddish hairs
  • Leaves: Alternate but growing in whorl-like clusters mostly at branch tips, elliptic and pointed, upper surface with fine rusty hairs, yellowish green, turning bronze in the fall
  • Flowers: white, showy, cup-shaped, petals fused at base, in clusters of 2-4 on old growth
  • Fruit: Dry capsules containing seeds
Lookalikes
Interesting Characteristics
  • The leaves were used for medicinal teas or poultices by some aboriginal groups in our region
Co-occurring Species
Sources

Douglas, G.W. et al (Editors). 1998-2002. Illustrated Flora of British Columbia, Volumes 1 to 8. B.C. Min. Environ., Lands and Parks, and B.C. Min. For., Victoria, B.C.

Pojar, J. and A. MacKinnon. 2014. Plants of Coastal British Columbia Including Washington, Oregon & Alaska. B.C. Ministry of Forestry and Lone Pine Publishing. Vancouver, B.C.

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