Linaria thibetica Franchet, Bull. Soc. Bot. Fr. 47: 11 (1900).
Glaucous perennial, glabrous except for inflorescence; fertile stems 1-5, 45-105 cm, erect, simple or rarely branched above, somewhat densely leafy throughout; sterile stems not seen. Leaves of fertile stems 24-58 x 6-21 mm, the length 3-8 x breadth, elliptic to broadly lanceolate, acute to obtuse, flat, attenuate, alternate. Inflorescence with (3-) 10-35 flowers, dense in flower and fruit, the axis subglabrous. Bracts 6-15 x 1.3-2.5 mm, linear-elliptic, acute. Pedicels 0.5-3 mm in flower, 1.5-4.5 mm in fruit, erect. Calyx-lobes subequal, 4.5-7 x 1.2-2.1 mm, linear or linear-lanceolate, obtuse to acute, more or less glabrous externally, the margins not scarious, pilose to villous. Corolla 16-20 mm, pale yellow or greenish-yellow, often tinged with purple in bud, the palate brownish-orange, glandular-pubescent externally; tube 3-4.5 mm broad at mouth; adaxial lip sinus 2-2.2 mm; abaxial lip sinus 1.5-1.7 mm; spur 7.5-9.5 mm, 1-1.5 mm broad at base, curved, more or less equalling rest of corolla. Capsule 7.5-9 x 5-7 mm, oblong-ovoid, sparsely glandular-pubescent. Seeds 2-2.2 mm, oblong-reniform to oblong-orbicular, blackish-brown; wing 0.4-0.6 mm broad; disc oblong-reniform, tuberculate or with some ridges; tubercles low, broadly conical, rounded, occasionally anastomosed to form irregularly sinuate ridges. Modified from Sutton (1988).
China (Tibet). Ch(Xz).
Type: CHINA: Xizang Zizhiqu (Tibet);Su-tchien, circa Ta-tsien-lou, Tongolo ad rupes Soulié475 (syn. P?); Soulié 505 (syn. P?).