Orobanche lavandulacea, Reichenb.

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 : 288

3. O. lavandulacea Reichenb. , Pl. Crit. 7: 48 (1829)

( Phelypaea lavandulacea (Reichenb.) Reuter ).

Stems 15-60 x O-4-O-7 cm, swollen at base, simple or branched, glandular-pubescent. Leaves 7-12 mm, ovate-lanceolate, acuminate. Inflorescence (6-)12-30cm, lax or dense, glandular-hairy; bracts 7—10(—12) mm, ovate-lanceolate; bracteoles linear-lanceolate, slightly shorter than calyx. Calyx 6-8 mm, usually blue; teeth equalling or slightly longer than tube, triangular with subulate apex. Corolla 16-22 mm, glandular-hairy, suberect at base, patent and narrowly campanulate distally with strongly divergent lips, white at base, bright blue distally; lobes of lower lip suborbicular, denticulate. Filaments glabrous or sparsely hairy, inserted c. 6 mm above base of corolla; anthers hairy. Stigma white or yellowish. Capsule 6-7 mm. On a variety o fherbs, most commonly Psoralea bituminosa . Mediterranean region. BI Co Ga G r Hs It Ju Sa Si.

O. rosmarina G. Beck , Österr. Bot. Zeitsehr. 70; 243 (1921), resembles 3 in its deep violet-blue inflorescence and its sharply inflected corolla, but in its subglabrous anthers and shorter stem it comes near to 1(c). It has been recorded as parasitic on Rosmarinus from the C. Mediterranean region and Portugal.