Linaria chalepensis (L.) Miller, Gard. Dict. ed. 8: no. 12 (1768).
Glabrous or rarely sparsely puberulent in inflorescence; fertile stems 1-4, 10-53 cm, simple or sparingly branched above. Sterile stems 0-6 (-9), procumbent to ascending. Leaves of fertile stems (8-) 18-67 x 0.7-4 mm, linear to narrowly oblong-lanceolate, acute to subobtuse; leaves of sterile stems (5-) 12-16 X 0.8-7 mm, narrowly elliptic to oblong, acute to subobtuse. Inflorescence with 4-24 flowers. Bracts (1-) 3-36 mm, equalling or greatly exceeding pedicels, deflexed in flower, becoming erect in fruit, often transitional to foliage leaves below. Pedicels 1-5.5 mm, erecto-patent in flower, becoming erect and thickened in fruit. Calyx exceeding corolla-tube; adaxial lobe 2.5-3.5 (-11) x 0.1-0.3 (-1) mm, filamentous; abaxial lobes (4-) 6-15 (-24) x 0.6-1.8 mm, linear-lanceolate or rarely oblong-spathulate, green. Corolla 12-22 mm, whitish-cream, occasionally with purplish veins; tube 1.3-1.5 mm broad at mouth; limb with lobes narrowly oblong; adaxial lip sinus 2.2-3 mm; abaxial lip with sinus 3-3.5 mm, the palate with two slightly raised gibbosities; spur 8-13 mm, 0.5-0.7 mm broad at mouth, the length up to 2.5 x rest of corolla. Capsule 4-5.5 mm, ovoid to suborbicular. Seeds 0.9-1.6 mm, oblong to somewhat tetrahedral, the margins usually acute, the intervening faces quadrate- or reticulatealveolate, greyish-brown; periclinal wall of testa-cells convex, verrucate or rugulate, that of cells from base of alveolae with slender, median papilla or hair-papilla, that of cells from sides of ridges usually bipapillate with slender median papilla and larger marginal papilla. Modified from Sutton (1988).
2n = 24 (Heitz, 1926; 1927b: 398).
NC & E Mediterranean, SW Asia. Ae Al An Bl Bu? Co Cr Cy Eg Ga Gr Ij Ir Iq It Ju Ls Rs(Ka) Sa? Si Sr Tu.
Type: [ITALY]: “23 chalepense” (lecto. (Sutton, 1980: 173) LINN-767.53!).