? Muxi? Northeast willow is also called dry willow, ghost willow and auspicious tree. Small olive tree of Oleaceae, 3- 10 m high; Branchlets nearly quadrangular. Leaves opposite, leathery, narrowly lanceolate to oblong, 4-8.5 cm long, pointed at the top, entire, slightly curled, bright above, densely covered with rust scales below, concave above midvein, convex below, and inconspicuous lateral veins. Panicle, axillary, 2.5-5 cm long, with rusty scales; Flowers bisexual, pedicel length within 65438 0 mm; Calyx is small, about 65438 0 mm long, 4 teeth, oval, about 2 mm long; Stamens 2, filaments extremely short; Ovary suborbicular, glabrous, 2-loculed, 2 ovules per locule. Drupe elliptic or subglobose, 7-8 mm long, dark brown. The flowering period is April-August, and the fruiting period is August-165438+1October.

Strong adaptability, heat resistance and cold resistance; Strong germination, fast growth and pruning resistance, which can be pruned into various ornamental trees.

Distributed in Yunnan and Sichuan (west); India also has it.

Medicinal value: the source is the roots and leaves of Camptotheca acuminata oleoresin.

Efficacy: diuretic and stranguria. Indications: It is used for dysuria, dripping and astringent pain. Tropism of nature and taste: slightly bitter and flat. Enter the bladder meridian.