Linaria incarnata (Vent.) Sprengel, Syst. Veg. ed. 16 2: 796 (1825).
Annual, glabrous below, densely glandular-pubescent in inflorescence, the multicellular hairs with violet or reddish-purple transverse walls; fertile stems 3-8, (12-) 16-55 cm, more or less erect, simple or sometimes branched; sterile stems 1-6. Leaves of fertile stems 3-8 x 0.4-0.6 mm, linear, obtuse, flat or involute, alternate; leaves of sterile stems similar to those of fertile stems but opposite or verticillate. Inflorescence with 3-7 flowers, lax or somewhat dense in flower, lax in fruit. Bracts 2.5-4 mm, lanceolate, acute. Pedicels 3.5-8 mm in flower, 6-9 mm in fruit, erecto-patent to erect, free. Calyx-lobes more or less equal, 2.5-4 x 0.5-0.6 mm in flower, 3.5-4 x 0.7-1 mm in fruit, linear-lanceolate, acute, reddish-purple or violet, the margin scarious, reddish-purple or violet. Corolla 20-25 mm, blue-violet to lilac or rarely pink; adaxial lip sinus 4-5 mm; abaxial lip sinus 2-4 mm; spur 8.5-13 mm, straight or curved, more or less equalling rest of corolla. Style deeply bifid, often with swelling at base of bifurcation. Capsule 3-4.7 x 2.8-3.8 mm, oblong, glabrous or puberulent; loculi more or less equal, each loculus dehiscing by 3 teeth. Seeds 0.5-0.6 mm, reniform or reniform-pyriform, ruminate-alveolate or transversely ridged, occasionally with indistinct longitudinal ridges, blackish-grey; transverse ridges 6-8, rounded, often low, anastomosed; periclinal wall of testa-cells verrucate or verruculate, the margin raised, produced into rounded or somewhat angular marginal papilla towards ridge-apex, the median papilla absent. Modified from Sutton (1988).
2n = 12 (Valdés, 1970b; Fernandes, Queirós and Santos, 1977: 44).
SW Iberian peninsula, NW Morocco. Hs Lu Ma.
Type: PORTUGAL: circa Pombal, iv 1717 sine leg. (lecto. (Laínz, 1966: 56; cf. Laínz, 1971: 260) B).