E-Flora BC: Electronic Atlas of the Flora of British Columbia

Rhododendron tomentosum Harmaja
northern Labrador tea
Ericaceae (Crowberry family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #32534)

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Distribution of Rhododendron tomentosum
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Rhododendron tomentosum ssp. decumbens


In 2015, the BC Conservation Data Centre changed the name of this taxon in BC from Rhododendron tomentosum ssp. subarcticum to Rhododendron tomentosum ssp. decumbens. It was previously changed from Ledum palustre ssp decumbens to Rhododendron tomentosum ssp. subarcticum.

Species Information

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Decumbent to erect shrubs; stems mostly 10-50 cm long/tall, rusty soft-hairy.
Alternate, evergreen, leathery, linear to narrowly oblong, 0.3-2.5 cm long, 1-3 (7) mm wide, tapering somewhat towards tip, margins strongly rolled under, rusty soft-hairy beneath; stalks 0.5-2 mm long.
In terminal umbrella-like clusters; flower stalks 0.8-2 cm long, with contorted reddish hairs, glandular, usually abruptly bent near the apex in fruit; corollas much as in L. groenlandicum; stamens usually 10, filaments hairy below the middle; calyces less than 1 mm long, fringed with long, reddish hairs, glandular.
Capsules, egg-shaped, 3-5 mm long, glandular.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Bogs and moist to wet peaty meadows, heath and tundra in the montane to alpine zones; locally frequent in extreme northern BC; circumpolar, N to AK, YT and NT, and E to Labr.; Eurasia.

Source: The Illustrated Flora of British Columbia

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