Linaria incompleta Kuprian., Sovetsk. Bot. 1936(4): 114, tab. 2 (1936).
Glaucous perennial, propagating vegetatively by root-buds, glabrous except for calyces; fertile stems numerous or sometimes solitary, (14) 25-42 cm, erect or suberect, densely leafy below, usually red-tinged at base; sterile stems rarely present. Leaves of fertile stems 20-55 x 0.5-2.8 mm, the length (8-) 12-50 x breadth, filiform to linear or lowermost linear-oblanceolate, acute, flat or canaliculate, attenuate, alternate; leaves of sterile stems linear, acute, alternate. Inflorescence with 3-12 flowers, dense in flower, becoming lax in fruit. Bracts 3-8 mm, linear-lanceolate, acute, reflexed or sometimes erect. Pedicels 1-2 mm in flower, 2-5 mm in fruit, erect. Calyx-lobes somewhat unequal, (3-) 4-6 x 1.5-2.5 (-3) mm, oblong-elliptic, obtuse, sparsely tomentellous to subvillous at base. Corolla 25-30 (-38) mm, yellow with violet veins and orange markings on tube, more or less glabrous externally; tube 5-6.5 mm broad at mouth; adaxial lip sinus 1.3-2 mm; abaxial lip sinus 1.5-2.5 mm; spur 14-17 (-20) mm, 2-3 mm broad at base, straight or somewhat curved, usually exceeding rest of corolla, more or less continuing line of tube. Capsule 7.5-9 mm, oblong-ovoid, labours. Seeds 2.8-3.2 mm, black; wing 0.6-0.8 mm broad; disc smooth. Modified from Sutton (1988).
SE European Russia and Caucasus to Soviet Central Asia. Rs(Ee Ka Ca Cb).
Type: USSR: [Kazakh SSR]; Dzungaria, Ters-Akkan, (v) Fischer s.n. (holo. LE).