Orobanche gracilis, Sm.

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 : 293

42. O. gracilis Sm. , Trans. Linn. Soc. London 4: 172 (1798)

( O. cruenta Bertol. ).

Stems 15-60 x 0-2-0-7 cm, somewhat swollen at base, glandular-pubescent, yellow or reddish. Leaves 7-15(-20)mm, ovate-deltate to lanceolate. Spike 3-20 x 2 5-4 cm, glandular-pubescent, lax at least below; bracts 10- 20 mm, triangular, acuminate; flowers fragrant. Calyx 8-15 mm; segments free or connate at base, usually unequally 2-lobed. Corolla 15-25 mm, glandular-pubescent, yellow outside, usually with red veins and reddish towards the lips, shining dark red inside, erecto-patent, broadly tubular, slightly constricted near the middle, slightly curved; upper lip emarginate; lobes of lower lip subequal, ciliate. Filaments hairy at least below, inserted not more than 2 mm above base of corolla; anthers glabrous. Stigma yellow. Capsule 12-15 mm. On various Leguminosae, rarely on Cistus spp. S., W. & C. Europe, northwards to c. 49° N. in N. W. France, C. Germany and E. Carpathians. Al Au BI Bu Co Cr Cz Ga Ge G r He Hs Hu It Ju Lu Po Rm Rs (W) Sa Si.