Origin: as a chance seedling in a wood in Dorsetshire, England. Parentage probably the native Rubus idaeus; introd. J.J. Kettle, Corfe Castle, Dorset; introd. into North America in 1923. Tree: moderately productive and vigorous. Resistant to the common strain of the North American aphid vector of the raspberry mosaic virus complex. Has been used extensively in North American breeding programs as a source of aphid resistance, conferred by gene Ag1, and in both North American and European programs as a source of fruit quality, particularly flavor. Fruit: medium size, soft, dark, excellent flavor.
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