Comprehensive Description
provided by North American Flora
Azaleastrum albiflorum (Hook.) Rydb. Mem. N. Y. Bot
Gard. 1: 297. 1900.
Rhododendron alhiflorum Hook. Fl. Bor. Am. 2: 43. 1834. Azalea albiflora Kuntze, Rev. Gen. 387. 1891. ICladothamnus campanulatus Greene, Erythea 3; 65. 1895.
Shrub 2 m, tall or less, with usually pale, coarsely and finely pubescent branchlets; leafblades oblong, elliptic, or oval, or somewhat broadened upward, 2-7 cm. long, acute or abruptly gland-tipped, bright-green and often somewhat shining above, paler and often slightly pubescent beneath, undulate or repand-crenate, the short petioles pubescent; pedicels copiously pubescent; calyx-lobes oblong varying to ovate or obovate, mostly 9-12 mm. long, finely pubescent; corolla usually white, 2 cm. long or less, the lobes very broad, about as long as the tube; filaments very pubescent at least from the middle to the base; capsules ovoid, 7-10 mm. long, pubescent.
Type i,ocaliTy: Alpine woods of the Rocky Mountains.
Distribution: Northern Rocky Mountains, as far south as Montana, to British Columbia and Oregon.
Ili^ustrations : Hook. Fl. Bor. Am. pi. 133; Bot. Mag. pi. 3670; Henshaw, Mountain Fl. Am, pi. 97; Brown & Schaffer, Alp. PI. Can. pi. 60.
- bibliographic citation
- John Kunkel Small, NathanieI Lord Britton, Per Axel Rydberg, LeRoy Abrams. 1914. ERICALES, CLETHRACEAE, LENNOACEAE, PTROLACEAE, MONOTROPACEAE, ERICACEAE, UVA-URSI. North American flora. vol 29(1). New York Botanical Garden, New York, NY
