Rubus idaeus, L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 10

7. R. idaeus L. , Sp. Pl. 492 (1753) .

Suckering by adventitious buds from the roots; stems 100-150 cm, erect, terete, pruinose, often armed with numerous weak prickles. Leaves usually pinnate with 5-7 leaflets or ternate, glabrescent above, whitetomentose beneath; terminal leaflet ovate or oblong, sometimes slightly lobed, cordate, shortly acuminate; stipules filiform, ciliate. Infloresence of few-flowered, leafy, terminal and axillary racemes, the axis eglandular, with sparse acides; flowers c. 1 cm in diameter, nodding. Sepals lanceolate, tomentose; petals narrow, erect, glabrous, white; stamens white, erect. Fruit red or orange. 2w= 14. Most of Europe, but only on mountains in the south. All except Az BI Cr Fa Is Lu Sb Tu; introduced in Sa. Many variants, some unarmed or with simple leaves, are widely cultivated for their edible fruits (raspberry). R. loganobaccus L. H. Bailey , Gentes Herb. 1: 155 (1923) originated in 1881 in a Californian garden as a cross between R. idaeus subsp. strigosus (Michx) Focke and R. ursinus subsp. vitifolius Cham. & Schlecht. , and is widely cultivated for its fruit (logan­ berry); it has robust, long-arching stems, large pinnate leaves with 5 leaflets, somewhat patent petals, large, purplish-red fruits which adhere to the receptacle, and In = 42. R. illecebrosus Focke , Abh. Nat. Ver. Bremen 16: 278 (1899), from Japan, with short, erect, more or less herbaceous stems, pinnate leaves, white petals and red, ellipsoid-globose fruits, is cultivated for its fruit and is reported as locally naturalized in N. Europe.