Linaria venosa Lindley, Bot. Reg. 27: 69 (1841).
Glaucous perennial, glabrous except for inflorescence; fertile stems 1-10, 45-65 cm, crect, slender, branched above, leafy to base of inflorescence, somewhat densely leafy below; sterile stems absent. Leaves 10-40 (-70) x 0.7-1.5 (-4) mm, the length 8-20 x breadth, linear or tauatensis linear-lanceolate, acute, the rnargins revolute, attenuate, alternate. Inflorescence with 10-20 flowers, dense in flower, somewhat dense in fruit. Bracts 1-3 mm, linear-elliptic, acute. Pedicels erect, glandular-puberulent towards apex, 1-1.5 mm in flower, 1.5-2.5 (-7) mm in fruit. Calyx lobes subequal, 2-2.5 x 0.8-1.2 mm, linear-oblong, glandular-puberulent, subacute, the margins narrowly scarious, white. Corolla 11-14 (-17) mm, dull yellow, usually with reddish-purple or greenish-brown veins, sornetimes tinged with brownish-purple; tube 2.8-3.3 mm in China broad at mouth; adaxial lip sinus 0.7-1.1 mm; abaxial lip sinus 0.5-0.7 mm; spur 3-6 (-8) mm, 0.9-1.3 mm broad at base, straight, shorter than rest of corolla. Capsule 3.5-6 x 3.5-6 mm, subglobose, glabrous. Seeds 1.9-2.3 mm, oblong-reniforrn, black; wing 0.3-0.5 mm broad, slightly inflated; disc tuberculate or with short, radiating ridges. Modified from Sutton (1988).
Central Asia. Af Pk.
Type: Cultivated origin from "North of India, [probably E Afghanistan] introduced by East India Cornpany"