石山漆 shi shan qi

Shrubs or small trees, 3-7 m tall; branchlets purplish red, glabrous, glaucous; buds glabrous. Petiole 3.5-8 cm, petiole and rachis slender, glabrous; leaf blade imparipinnately compound, 15-25 cm; leaflets 7-9, opposite, sessile to subsessile; leaflet blade falcate-lanceolate, 4-8.5 × 1-3.5 cm, membranous, glabrous on both surfaces, glaucous-green abaxially, base oblique, rounded or broadly cuneate, margin entire to sparsely serrate distally, apex acuminate, ± curved, with apiculum, lateral veins 12-18 pairs, prominent on both surfaces. Inflorescence paniculate, 12-18 cm, glabrous, many branched; peduncle and rachis slender; floral subtending bracts lanceolate, ca. 2 mm. Pedicel ca. 3 mm. Calyx glabrous, lobes ovate, ca. 0.7 mm, obtuse apically. Petals oblong, with brown featherlike venation pattern, obtuse apically. Anthers ovate-oblong. Disk 5-lobed. Ovary ovoid, glabrous. Drupe not seen. Fl. Apr-May.

● Hill forests on limestone; ca. 1500 m. SE Yunnan (Xichou).