Linaria triornithophora (L.) Willd., Enum. Pl. Horti Berol.: 639 (1809).
Somewhat glaucous, glabrous perennial; fertile stems 1-12, 50-130 cm, erect, stout, simple or branched above; sterile stems usually absent. Leaves 25-75 x 5-30 mm, lanceolate to ovatelanceolate, acute, amplexicaul, verticillate in remote whorls of 3 (-5). Inflorescence occasionally branched, lax with 3-24 flowers, mostly verticillate in whorls of 3-5. Bracts 6-38 mm, becoming leaf-like. Pedicels erect, 7-35 mm, scarcely elongating in fruit. Calyx-lobes equal, 5-10 x 1.2-2 mm, ovate-lanceolate, long-acuminate. Corolla 35-55 mm, reddish-purple, bluish-violet or rarely pink or white, the palate usually yellow or white reticulated with purple or violet; tube (6-) 8-10 mm broad at mouth; adaxial lip sinus 4-8 mm; abaxial lip sinus 2.5-6 mm; spur 16-25 mm, 3-6 mm broad at base, straight. Capsule 3-6 mm, depressed-globose or broadly cordate, emarginate, dehiscing by 3-6 valves. Seeds 2-2.3 mm, elliptic-orbicular or deltate-orbicular, plano-convex, dark brown to blackish-brown; wing 0.15-0.2 mm broad, entire, somewhat thick on inner margin, indistinct from disc; disc deltate-orbicular, the ventral face somewhat trigonous, densely tuberculate, the dorsal (hilar) face somewhat sparsely tuberculate or cristate with short, radial ridges; periclinal wall of testa-cells tabular or convex, verrucate, especially towards apex of tubercle, not papillate, the junction of anticlinal walls of testa-cells somewhat raised, smooth. Modified from Sutton (1988).
2n = 12 (Heitz, 1926; Fernandes, Queirós and Santos, 1977: 45; Van Loon and DeJong, 1978: 59).
W Iberian peninsula. Hs Lu.
Type: [PORTUGAL]: "7 triornithophorum" sine leg. (lecto. (Valdés, 1970a: 79) LINN767.11!).