异叶亚菊 yi ye ya ju

Chrysanthemum variifolium C. C. Chang, Sinensia 5: 161. 1934; Ajania manchurica Poljakov; Dendranthema variifolium (C. C. Chang) Voroschilov; Phaeostigma variifolium (C. C. Chang) Muldashev.

Subshrubs, ca. 30 cm tall, old branches with densely leafy tips. Flowering branches sparsely sericeous or subglabrous. Middle leaves of flowering branches with petiole 1-2 cm; leaf blade ovate, 2-3 × 1.5-2.5 cm, abaxially gray-white, densely sericeous, adaxially green, glabrous, 3-5-pinnatisect; segments linear or narrowly linear. Lower and upper leaves smaller, blades 3-sect. Synflorescence a terminal compound flat-topped panicle. Capitula many. Involucres campanulate, 4-5 mm in diam.; phyllaries in 4 rows, scarious margin yellow-brown, outer ones ovate or long ovate, ca. 2 mm, abaxially sparsely sericeous at base, apex acute, middle and inner ones narrowly obovate or elliptic, 3-4 mm, apex rounded. Florets yellow, exterior with sessile glands; marginal female florets 6, corolla narrowly tubular, ca. 2.5 mm, apex 2- or 3-denticulate; disk florets many, corolla tubular, ca. 3 mm. Achenes ca. 2 mm. Fl. and fr. Aug-Sep.

Rocky slopes; 1200-3500 m. Heilongjiang, Hubei, Shaanxi [Korea, Russia].

The whole plant is used medicinally for relieving spasms.