Flowering from June to July; fruiting from August to December.
Daphne longilobata is close relative of Daphne depauperata, but differs from the latter in its leaf blade papery (vs. leathery), peduncle 8-10 mm (vs. 3 mm), drupe 8-12 mm (vs. 5 mm).
Daphne longilobata is occurring in SW Sichuan, E Xizang, NW Yunnan of China.
Shrubs evergreen, to 1.5 m tall, erect. Branches pale green, sometimes turning purplish brown, slender, pubescent. Leaves alternate; petiole 0.5-2 mm long, glabrous; leaf blade lanceolate or oblanceolate, 1.5-6 cm long, 0.6-1.1 cm wide, papery, both surfaces glabrous except sometimes for apical tuft of hairs when young, base narrowly cuneate, margin sometimes slightly revolute, apex obtuse or obtuse-rounded, rarely apiculate or retuse; veins 6-9 pairs. Inflorescences terminal, 3-5-flowered; peduncle 0.8-1 cm long, pubescent; bracts absent. Pedicel 1-2 mm long, pubescent. Calyx pale green, with white or very pale cream lobes; tube cylindric, 8-10 mm long, exterior pubescent; lobes 4, unequal, lanceolate, 5-7 mm long, 2-3 mm wide, abaxially glabrescent, apex long acuminate. Stamens 8, lower whorl inserted below middle of calyx tube, upper whorl between throat and middle of tube; filaments ca. 0.5 mm long; anthers oblong, ca. 1.5 mm long, pollen orange. Disk annular, margin shallowly undulate. Ovary ovoid, ca. 2 mm, glabrous; style short; stigma capitate. Drupe scarlet-red, ovoid-globose, 8-12 mm long.
The chromosomal number of Daphne longilobata is 2n = 18 (Tan, 1980).
Growing in forests, shrubby slopes, among rocks; 1600-3500 m.
Daphne longilobata is used as a stock for grafting.