Rubus humulifolius, C. A. Meyer

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 : 9

2. R. humulifolius C. A. Meyer , Beitr. Pfl. Russ. Reich. 5: 57 (1848).

Stems 10-30 cm, erect or ascending, setose, pubescent or glabrous. Leaves 3- to 5-lobed, cordate, often wider than long, coarsely serrate or biserrate, pubescent above, glabrescent beneath except on the veins; stipules filiform, but often abortive in the upper leaves. Inflorescence of l (-3) flowers. Sepals erectopatent, lanceolate, puberulent; petals linear-lanceolate, acuminate, white, sometimes fugacious; stamens short, the outer filaments dilated, the inner filiform; carpels 5, glabrous; styles long. Drupelets 5-6 x 3 mm, often solitary, purplish-red, acid. N. Russia. +Fe Rs (N, C).