Rhododendron lapponicum, (L.) Wahlenb.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 9

6. R. lapponicum (L.) Wahlenb. , FI. Lapp. 104 (1812).

Procumbent, evergreen dwarf shrub; stems up to 50cm, freely branched; young twigs densely lepidote. Leaves 0-6-2 cm, obtuse, sparsely lepidote above and densely so beneath with brownish scales, otherwise glabrous; margins revolute. Racemes with 3-6 flowers; pedicels 6-12 mm. Calyx 1-5 mm; lobes triangular, ciliate. Corolla c. 8x 15 mm, broadly campanulate, purple, glabrous. Stamens 5-8. Style much longer than ovary; ovary lepidote. Dry heaths and stony slopes; calcicole. Mountains o f Fennoscandia. Fe No Su. (North America.)