Linaria haelava (Forskål) F.G. Dietr., Nachtr. Vollst. Lexic. 4: 400 (1818).
Annual, glabrous except for glandular-pubescent inflorescence; fertile stems 1-10 (-40), 4-22 cm, decumbent, ascending or rarely suberect, simple or branched; sterile stems usually absent. Leaves (5-) 10-50 x 0.4-3 mm, filiform to linear-oblong, obtuse, attenuate, alternate above, the lowermost opposite or 3-verticillate. Inflorescence with 2-12 flowers, dense in flower, elongating and becoming lax in fruit. Bracts 2-6 (-12) mm, narrowly oblanceolate, obtuse. Pedícels 0.5-1.5 mm in ftower, 1-2.5 mm in fruit, erecto-patent to erect. Calyx-lobes subequal, 2.5-4.5 x 0.7-1.5 mm, oblong to oblanceolate, subacute to obtuse, narrowly scarious. Corolla 16-31 mm, yellow, yellowish-white or sometimes blue with yellow palate; tube 2.5-4.5 mm broad, adaxial lip sínus 1.5-5 mm; abaxíal lip sinus 0.5-1.3 mm; spur (10-) 12-22 mm, 1-2 mm broad at base, straight or scarcely curved, usually greatly exceeding rest of corolla. Capsule 2.5-4 x 2.5-3.5 mm, ovoid, glabrous or pubescent towards apex. Seeds 0.4-0.6 mm, oblong-reniform, ovoid-reniform or somewhat tetrahedral, the margins rounded or obtuse, without longitudinal ridge, the faces densely tuberculate with tubercles rounded, more or less contiguous; hilum subbasal to 0.3 distance from base to apex, very narrow; periclinal wall of testa-cells tabular or convex, verrucate or rugulate, that of cells from interstices or sides of tubercles with conspicuous, median papilla. Modified from Sutton (1988).
NE Africa & SW Asia. Eg Ij Li? Ls? Sn Sr.
Type: EGYPT: in desertis Kahirinis Forskåhl s.n. (holo.? C, iso. BM!).