Roots fibrous. Sterile stems absent. Flowering stems branched from base, erect, 8-10 cm, glabrous. Leaf blade narrowly triangular to lanceolate, 7-8.5 × 2.4-3.2 mm, base spurred (spur entire, 1.3-1.6 mm), apex acute, entire. Cyme corymbiform, densely many flowered, 0.8-1.5 × 0.9-2.5 cm; bracts leaflike. Flowers unequally 5-merous; pedicel 1.2-3 mm. Sepals broadly lanceolate, 6-6.8 × 1.7-2 mm, base spurless, apex entire, papillate-apiculate. Petals oblong-obovate, ca. 11 × 2.5 mm, base connate for 1.2-1.4 mm, apex apiculate. Stamens 10, all shorter than petals; antepetalous ones inserted 3-4 mm from petal base. Nectar scales linear, ca. 0.8 × 0.3 mm, apex truncate. Carpels 4.3-5.3 mm, base connate for 0.8-1 mm; ovules many. Styles ca. 1.5 mm. Fl. Sep-Oct.

* W Sichuan (Kangding Xian).