Orobanche rapum-genistae, Thuill.

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

41. O. rapum-genistae Thuill. , FI. Paris ed. 2, 317 (1800)

( O. major L. pro parte, O. rapum auct.).

Stems 20-80x0-5- 2 cm, strongly swollen at base, pale yellow, sometimes tinged with red. Leaves 15-25(-60) mm, ovate to linear-lanceolate, rather dense. Spike 15-35x3-4 cm, dense; bracts 15-50 mm, linear-lanceolate; flowers fetid. Calyx 8-15 mm; segments free or slightly connate at base, bidentate, usually entire. Corolla 20-25 mm, suberect to erecto-patent, campanulate, slightly curved; lower lip with middle lobe usually the larger, minutely to conspicuously ciliate. Filaments inserted not more than 2 mm above base of corolla; anthers glabrous. Stigma yellow. Capsule 10-11 (-14) mm. 2« = 38. On various leguminous shrubs. W. Europe, northwards to S. Scotland and extending eastwards to C. Germany and S. Italy. Be Br Co Ga Ge Hb He Ho Hs It Lu Sa Si. 1 Bracts, corolla, style and filaments glabrous or subglabrous

(c) subsp. rigens 1 Bracts, corolla, style and upper part of filaments glandularpubescent 2 Bracts at least 1| times as long as corolla; upper lip of corolla distinctly 2-lobed, more or less erect (b) subsp. benthamii 2 Bracts shorter than to slightly exceeding corolla; upper lip of corolla subentire, porrect (a) subsp. rapum-genistae