Linaria altaica Fischer ex Kuprian., Acta Inst. Bot. Acad. Sci. URSS ser. 1 2: 301, tab. 3 (1936).
Glaucous perennial, more or less glabrous throughout; fertile stems usually solitary or few, 15-40 cm, ascending to erect, simple or branched, densely leafy except at base, purplish at base; sterile stems not seen. Leaves of fertile stems 35-40 x 1-2.5 (-3.5) mm, the length (6-) 12-25 x breadth, linear, obtuse to subacute, more or less flat, attenuate, 1-veined, alternate. Inflorescence with 8-30 flowers, lax to somewhat dense in flower and fruit. Bracts 1.5-4 mm, linear-lanceolate, usually reflexed, the lowermost sometimes leaf-like. Pedicels (2.5-) 5-7 mm, in flower and fruit, erect or erecto-patent, slender. Calyx-lobes subequal, 2-3 x 0.6-1.5 mm, linear-lanceolate to ovate, acute or somewhat acuminate, glabrous or rarely sparsely glandular-puberulent towards base, the margins not scarious. Corolla (16-) 17-19 mm, pale yellow, the palate orange, the tube with 2 orange marks, glabrous externally; tube 3-4 mm broad at mouth; adaxial lip sinus 2-3 mm; abaxial lip sinus 1.5-3 mm; spur 8-10 mm, 1-1.5 mm broad at base, straight or somewhat curved, more or less equalling rest of corolla. Capsule 6-8 mm, sub-globose. Mature seeds not seen. Modified from Sutton (1988).
SC Russia (mainly Altai). Rs(Cb Sa).
Type: USSR: “Hab. in montibus altaicis nec non Ulutavicus et Uralensibus. Riddersk” ex herb. Fischer (holo. LE?).