Tulipa tetraphylla Regel

Bulb ovoid, 1.5--2 cm in diam.; tunic blackish, appressed hairy inside distally. Stem glabrous. Leaves (3--)5 or 6(or 7), crowded, sublorate, overtopping flower, 1--1.5 cm wide, margin crisped. Flowers 1--4. Tepals yellow, oblong to oblong-rhomboidal, 3--4 cm × 6--7 mm; outer ones tinged with violet and abaxially greenish; inner ones abaxially dingy green. Stamens 1--1.3 cm, equal; filaments glabrous, dilated distally, gradually narrowed toward base. Style short. Fl. May 2 n = 24, 48.