Linaria tingitana Boiss. & Reuter, Pugillus: 84 (1852).
Perennial, glabrous except for glandular-ciliate calyces; fertile stems numerous, 50-100 cm, ascending to erect, simple or occasionally branched above; sterile stems 0-8, procumbent or ascending. Leaves of fertile stems (5-) 13-50 x (0.4-) 0.8-3 mm, filiform or linear, obtuse or truncate, flat, revolute or conduplicate, alternate; leaves of sterile stems oblong to oblongelliptic, acute to subacute, 4- to 6-verticillate. Inflorescence with 3-30 (-50) flowers, dense in flower, scarcely elongating, more or less dense in fruit. Bracts 3-6 mm, oblanceolate, acute. Pedicels 3.5-5 mm in flower, 4-7 mm in fruit, erect, free. Calyx-lobes more or less equal, scarcely accrescent, 3.2-4 (-6) x 0.8-1.4 mm, lanceolate, acute, the margin scarious, white. Corolla 22-28 mm, yellow, often with red veins, the palate orange; adaxial lip sinus 2-3 mm; abaxial lip sinus 0.5-1 mm; spur 9-12 mm, straight or somewhat curved, shorter than rest of corolla. Style deeply bifid. Capsule 3.5-6 x 3-4 mm, oblong-ovoid, glabrous; loculi more or less equal, each loculus dehiscing by 3 (-5) teeth. Seeds 0.5-0.8 mm, reniform to irregularly tetrahedral, transversely ridged or occasionally somewhat ruminate-alveolate, black; transverse ridges 8-10, rounded, discrete or sometimes anastomosed; periclinal wall of testa-cells verruculate, the margins scarcely raised except for marginal papilla towards ridge-apex, the median papilla occasionally present, small, rounded, more or less isodiametric. Modified from Sutton (1988).
2n = 12 (Humphries, Murray, Bocquet and Vasudevan, 1978: 405).
NW Algeria, N Morocco. Ag Ma.
Type: ALGERIA: 01; Inter frutices montis Gebel Santo prope Oran (syn. G-BOIS).
MOROCCO: T; ad promont. Spartel prope Tingidem Boissier & Reuter s.n. (syn. G-BOIS (cf. Viano, 1978a: 739)).