Gentiana schlechteriana H. Limpricht; G. tricholoba Franchet.
Annuals 10-30 cm tall. Stems purple, ascending to erect; branches few, spreading. Basal leaves withered at anthesis. Stem leaves widely spaced; leaf blade ovate-lanceolate, 1-3 cm × 5-12 mm, shorter than internodes, abaxially densely pubescent on midvein, base rounded, margin scabrous to ciliolate, apex acuminate to acute, veins 1-3. Flowers terminal, solitary, sessile. Calyx tubular, 1-1.3 cm; lobes linear to subulate, 8-11 mm, margin scabrous or ciliolate, apex acuminate, midvein outside minutely hispid, strongly keeled, decurrent into wings of calyx tube. Corolla pale yellow, with blackish streaks, tubular, 4-6 cm; lobes ovate, 5-7 mm, margin entire, apex acuminate with a caudate tip 1-2 mm; plicae obliquely truncate, margin denticulate. Stamens inserted at middle of corolla tube, unequal; filaments (0.2-)0.5-1.5 cm; anthers narrowly ellipsoid, 2.5-3 mm. Style 1-1.5 cm; stigma lobes linear. Capsules ellipsoid, 2-3.5 cm; gynophore 1.5-2 cm. Seeds brown, ellipsoid, 3-3.5 mm. Fl. and fr. Aug-Oct.
* Grassland and scrub slopes; 2200-3900 m. Gansu, Ningxia, Qinghai, W Sichuan.