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Article from Bean's Trees and Shrubs Hardy in the British Isles
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'Viburnum dilatatum' from the website Trees and Shrubs Online (treesandshrubsonline.
A deciduous shrub, 6 to 10 ft high (sometimes taller), with erect stems; young branchlets very downy. Leaves broadly ovate, roundish or obovate; 2 to 5 in. long, and from half to about as much wide, widely toothed, pointed, tapering, rounded or heart-shaped at the base, hairy on both sides; stalk 1⁄4 to 3⁄4 in. long; veins in five to eight pairs. Flowers pure white, all fertile, 1⁄4 in. across, produced in June in hairy, stalked, mostly five-rayed cymes, 3 to 5 in. across. Fruits bright red, roundish ovoid, 1⁄3 in. long. Bot. Mag., t. 6215.
Native of Japan and China; it first flowered with Messrs Veitch in 1875 and had attained a height of 20 ft in their nursery by 1900. This fine viburnum is remarkably profuse in its flowering, the trusses being produced not only at the top of the branch but from short twigs down the sides as well. It is even more beautiful in its fruits but does not set them freely unless at least two seedlings, or plants of different clones, are grown. Obviously clones of known character are preferable and with this point in mind two were selected and named by Donald Egolf at the United States National Arboretum in 1958 – ‘Catskill’ and ‘Iroquois’ (Baileya, Vol. 14 (1966), pp. 109–12).
The yellow-fruited form, originally described from a plant cultivated in the USA but also known in Japan, has been recognised as V. dilatatum f. xanthocarpum Rehder (referred by POWO (12/5/2025) to var. dilatatum). Bot. Mag., n.s., t. 103. A.M. 1936.