Linaria sessilis Kuprian., Not. Syst. (Leningrad) 11: 162 (1949).
Glaucous, glabrous perennial; fertile stems usually numerous from stout woody rootstock, 12-22 cm, ascending to erect, simple or branched from base, sometimes sparingly branched above, more or less densely leafy up to base of inflorescence, the lowermost part of stem with scale-leaves, propagating vegetatively from adventitious root-buds; sterile stems rarely present. Leaves 15-30 (45) x 1-2.5 (-3.5) mm, the length 12-15 x breadth, linear or lowermost grading into scale-leaves, acuminate, flat or involute towards base, attenuate, somewhat fleshy, alternate. Inflorescence with 6-15 flowers, dense in flower, somewhat dense in fruit. Bracts 2-4.5 mm, linear or linear-oblong, acute, the lowermost sometimes leaf-like. Pedicels 0.5-2.5 (-7) mm in flower and fruit, erect. Calyx-lobes subequal, 2-3.5 x 1-1.5 mm, oblong-lanceolate or oblong, obtuse or subobtuse, the margins very narrowly white-scarious towards base. Corolla 17-22 (-24) mm, deep yellow, often with prominent violet veins or tinged with violet; tube 5-6 (-7.5) mm broad at mouth; adaxial lip sinus 1-1.3 mm; abaxial lip sinus 1.3-2.2 mm; spur 5-8 (-9) mm, 1-1.8 mm broad at base, more or less straight, shorter than rest of corolla. Capsule 4-6 mm, globose, glabrous. Seeds oblong-reniform; disc smooth. Modified from Sutton (1988).
Soviet Central Asia. Rs(Ce).
Type: USSR: Montes Pamir-Alai, prov. Hissar occidentalis in loco Kutarma dicto ad fontes flum. Ssanyaassia in decliviis schistosis, 4000 m, 6 viii 1937 Lepeshkin & Kutaleva s.n. (holo. LE, photo. BM!).