Rhizome short. Stem simple or branched distally, 15--50 cm. Petiole absent to 2 mm; leaf blade linear-lanceolate to oblong-lanceolate, 4--7 × 1--1.5 cm, base cuneate to rounded, apex acute. Inflorescences terminal, (1 or)2--5-flowered; pedicels 0.7--1.8 cm. Flowers open campanulate. Tepals yellow, rarely green apically, ovate-oblong to ovate-spatulate, 1.5--2.3 cm × 4--6 mm, very minutely papillose at margin proximally and at base adaxially, base spurred; spurs ca. 2 mm. Stamens 1.2--1.7 cm, included; filaments 0.9--1.4 cm, glabrous or sparsely papillose; anthers 2--3 mm. Ovary 2.5--3 mm. Style 1.1--1.7 cm. Fl. Mar--Apr. 2 n = 14*.
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