A shrub 6 or 7 ft high; shoots pale brown, rather scurfy when quite young. Leaves ovate or ovate-lanceolate, 2 to 3 in. long, 3⁄4 to 11⁄2 in. wide, broadly tapered or rounded at the base, slender-pointed, toothed, scurfy, with starry minute scales on both surfaces, especially above; stalk 1⁄8 to 3⁄8 in. long. Corymbs rounded, 11⁄2 to 2 in. across, expanding in early June; flowers 3⁄4 in. across, white suffused with purple on the outside; petals roundish ovate, scurfy outside except at the margins. The five longer stamens have the apex of the wings forked so that each fork stands above the anther, the five smaller ones have the apex undivided and the anther attached below it on the inner side; calyx with linear-lanceolate lobes, and, like the flower-stalk, covered with starry scurf. Bot. Mag., t. 7708.
Native of Yunnan; discovered by the Abbé Delavay, and sent by him to Vilmorin in 1888. It is allied to discolor, but as indicated by Rehder is distinguished by the scales on the leaves being only five- to seven-rayed (half as many as in D. discolor), and by the wings of the filaments being extended above the anthers. A very handsome shrub and the parent of several beautiful hybrids, for which see D. × elegantissima and D. × rosea. Another less common in cultivation is:
D. × kalmiiflora Lemoine – This hybrid, of which the pollen parent is D. parviflora, was raised by Lemoine and distributed in 1900. Its flowers are pale rose inside, deeper outside, and about 4⁄5 in. across.