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Rubus palmatus Thunb.

Modern name

Rubus palmatus Thunb.

Synonyms

R. microphyllus sens. Rehd., ? not L.f.

A deciduous shrub, 5 or 6 ft high in the open (thrice as much in a cool greenhouse); stems not downy, but armed with small, flattened prickles. Leaves usually palmately five-lobed, sometimes three-lobed, sometimes seven- or nine-lobed, 1 to 3 in. long, margins doubly toothed, green on both surfaces with silky hairs along the midrib and veins; stalk 34 to 112 in. long, with hooked spines. Flowers white, 112 in. across, solitary, produced from the axils of terminal leaves on short shoots that spring from the previous year’s growths. Petals of narrowly oval outline, their ends rounded; calyx downy outside, glabrous within, the lobes narrow, long-pointed, and toothed; stalk slender, 12 to 34 in. long. Fruits roundish, yellow and juicy, 34 in. across. Bot. Mag., t. 7801.

Native of China and Japan. In the Temperate House at Kew, trained on a pillar, this shrub was 20 ft or more high, but in the open and unprotected it is rather a low shrub. Although hardy enough, it apparently needs somewhat warmer conditions than the open air affords near London to bring out its best qualities.


Genus

Rubus

Other species in the genus