Linaria hepatica Bunge ex Ledeb., Icon Pl. Fl. Koss. 1:22, tab. 91 (1829).
Somewhat glaucous perennial, more or less glabrous throughout; fertile stems 1-5, 15-40 cm, ascending to erect, slender, sparingly branched above, sparsely leafy except for 1-3 cm below inflorescence; sterile stems rarely present. Leaves of fertile stems 25-45 x 1.2-3 (-4)mm, the length 6-30 x breadth, linear, acute, flat, attenuate, alternate. Inflorescence with 2-10 flowers, very lax in flower and fruit, the axis sinuate. Bracts 1.5-5 mm, linear-lanceolate or lanceolate, acute. Pedicels 1-3 mm in flower, 3-6 mm in fruit, erect. Calyx-lobes more or less equal, 1.8-3 x 0.8-1.8 mm, lanceolate to oblong, subacute to obtuse, glabrous or with few short, glandular hairs at base of lobes, the margin very narrowly scarious, often violet-tinged. Corolla 23-27 mm, dull purple, the spur and palate yellow, sparsely glandular-puberulent externally; tube 5-6.5 mm broad at mouth; adaxial lip sinus 1.1-1.8 mm; abaxial lip sinus 1.7-3 mm; spur 8-10 (-11) mm, 1.5-3 mm broad at base, straight, shorter than rest of corolla. Capsule 5-9 x 5-7 mm, subglobose to oblong-ovoid, glabrous. Seeds 2.5-3.2 x 2-2.6 mm, reniform-orbicular, blackish-grey, metallic-shiny; wing 0.6-0.9 mm broad at mouth; disc elongate-reniform or reniform-oblong, smooth. Modified from Sutton (1988).
Soviet Central Asia & Altai, W Mongolia?. Mo? Rs(Cb Ce? Sa).
Type: USSR: "Hab. in rupestribus montium Kurtschum, Arkaul et Dolenkara deserti Songoro-Kirhisici", v-vi sine leg. (holo.? P).