| Family | ERICACEAE |
| Genus species | Rhododendron tomentosum Harmaja |
| Bibliography | Ann. Bot. Fenn. 27(2): 204 (1990) |
| Native Range | Subarctic & Temperate |
| Primary Biome | Temperate |
| Habitat | bogs, marshes |
| Altitude | 0-1800m |
| Description | leaves persistent, petiolate, linear, 2-5cm, coriaceous, entire, glabrous, acute, abaxially scaly, margins revolute, inflorescence 10-35-flowered, corolla rotate, 2-8mm across |
| Size | 20-50cm |
| Color | white, creamy |
| Bloom | spring, summer |
| Ca | |
| Type | subshrub |
| Cultivation | very moist to boggy, semi-shady site alpine house, moist, humous, sandy soil, semi-shade |
| Propagation | seed in spring, uncovered, germ. 3-6 months, 13-18°C cuttings in late summer and fall; layering in spring |
| Synonyms | Ledum decumbens (Aiton) Lodd. ex Steud. Ledum dilatatum Rupr. Ledum graveolens Gilib. Ledum groenlandicum f. denudatum Vict. & J.Rousseau Ledum maximum (Nakai) A.P.Khokhr. & Mazurenko Ledum palustre L. Ledum palustre var. angustifolium Hook. Ledum palustre var. angustum N.Busch Ledum palustre var. decumbens Aiton Ledum palustre f. decumbens (Aiton) Y.L.Chou & S.L.Tung Ledum palustre ssp. decumbens (Aiton) Hultén Ledum palustre f. denudatum (Vict. & J.Rousseau) B.Boivin Ledum palustre var. dilatatum Wahlenb. Ledum palustre var. longifolium Freyn Ledum palustre ssp. longifolium (Freyn) Kitag. Ledum palustre var. maximum Nakai Ledum palustre var. minus Nakai Ledum palustre f. parvifolium Maack Ledum palustriforme A.P.Khokhr. & Mazurenko Ledum tomentosum Stokes Rhododendron palustre (L.) Kron & Judd Rhododendron subarcticum Harmaja Rhododendron tomentosum ssp. decumbens (Aiton) Elven & D.F.Murray Rhododendron tomentosum ssp. subarcticum (Harmaja) G.D.Wallace |
| Territory | 0 Circumpolar 1 Europe 10 Northern Europe (FIN Finland, NOR Norway, SWE Sweden) 11 Middle Europe (AUT Austria, CZE Czechoslovakia, GER Germany, POL Poland) 14 Eastern Europe (BLR Belarus, BLT Baltic States, RUC Central European Russia, RUE East European Russia, RUN North European Russia, RUW Northwest European Russia, UKR Ukraine) 3 Asia-Temperate 30 Siberia (ALT Altay, BRY Buryatiya, CTA Chita, IRK Irkutsk, KRA Krasnoyarsk, TVA Tuva, WSB West Siberia, YAK Yakutskiya) 31 Russian Far East (AMU Amur, KAM Kamchatka, KHA Khabarovsk, KUR Kuril Is., MAG Magadan, PRM Primorye, SAK Sakhalin) 32 Middle Asia (KAZ Kazakhstan) 36 China (CHI Inner Mongolia, CHM Manchuria) 37 Mongolia 38 Eastern Asia (KOR Korea) 7 Northern America 70 Subarctic America (ALU Aleutian Is., ASK Alaska, GNL Greenland, NUN Nunavut, NWT Northwest Territories, YUK Yukon) 71 Western Canada (ABT Alberta, BRC British Columbia, MAN Manitoba, SAS Saskatchewan) 72 Eastern Canada (LAB Labrador, NFL Newfoundland, ONT Ontario, QUE Québec) |