Orobanche hederae, Duby

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 292

29. O. hederae Duby , Bot. Gall. 1: 350 (1828).

Stems 15-60 x 0-3-0- 8 cm, usually strongly swollen at base, glandular-pubescent, yellow to reddish-purple. Leaves 12-30 mm, oblong to lanceolate, acute. Spike 10-40 x 2-5-4 cm, lax, glandular-pubescent; bracts 12-22 mm, lanceolate, acuminate. Calyx 10-15 mm; segments free, entire or unequally bifid. Corolla 10-22 mm, subglabrous, rarely glandular-pubescent, dull cream tinged distally with reddish-purple, erecto-patent to more or less patent; tube somewhat inflated below, gradually narrowed to the mouth, nearly straight; lips patent, the upper entire to emarginate, the lower not cibate, with middle lobe usually the largest. Filaments more or less glabrous, rarely somewhat hairy below, inserted 3-4 mm above base of corolla; anthers glabrous. Stigma yellow. Capsule 10-12 mm. 2« = 38. On Hedera spp. W., S. & S. C. Europe, northwards to Ireland. Au Be BI Br Co Ga Ge Gr Hb He Ho Hs Hu It Ju Lu Rs (K) Sa Si Tu [Po].