Incarvillea longiracemosa Sprague; I. lutea Bureau & Franchet subsp. longiracemosa (Sprague) Grierson; I. wilsonii Sprague.

Herbs perennial, ca. 1 m tall, glabrous. Leaves 1-pinnately compound; lateral leaflets 3-6 pairs, long elliptic, 6-7 X ca. 2 cm, base oblique; terminal leaflets elliptic, 2-7 X 1-3.2 cm, entire or serrate. Inflorescences racemose, terminal, more than 17-flowered, ca. 53 cm; bracts 0.5-1.5 cm, lanceolate; bractlets linear. Pedicel 5-10 mm. Calyx campanulate, yellow-green, 1.5(-3.0) X 0.8-1.5 cm; teeth broadly triangular, ca. 4 X 4-7 mm, apex acute. Corolla rose or red, patent; tube 3.5-5 cm, base constricted; lobes ovate, ca. 2 X 1.4-2.5 cm. Filaments yellow-green; anthers yellow. Style long, pale yellow; stigma compressed, 2-lobed. Capsule 4-angled, 8-10 X 1-1.3 cm, dehiscing by 2 leathery valves, apex acute. Seeds pale brown, ca. 4.5 X 3 mm, surrounded by a wing ca. 1 mm, puberulent. Fl. May-Jul, fr. Jul-Oct.

* Slopes; 2100-3000(-4200) m. NW Sichuan, Xizang (W to Lhasa).