Small deciduous trees of Sapium of Euphorbiaceae are common native trees, and their fruits are one of the important food sources for birds. This species is a poisonous plant included in the Botanical Atlas Database of China, and its toxicity is toxic to wood, milk, leaves and fruits. Contains carcinogens. Milk is toxic and can cause skin allergies.
Use:
1. Landscaping trees, mostly used as dike trees, shade trees and street trees, are planted in waterside, lawns, valleys and other places.
2. Tree species containing oil and chemical raw materials, whose seeds contain oil and clear oil, can be used to make soap, paint, candles, etc.
Bark, roots, leaves and seeds are used as medicines to treat edema and eczema.
Sapium sebiferum, up to15m, with hairless parts and milky juice; Bark is dark gray with longitudinal cracks; Branches are widely distributed and have lenticels. Leaves alternate, papery, rhombic, rhombic-ovoid or rare rhombic-obovate, 3-8 cm long and 3-9 cm wide, with sharp tip and broad wedge-shaped or obtuse base, entire; The midvein is slightly convex on both sides, and the lateral veins are 6- 10 pairs, slender, inclined and curved, and the distance from the edge is 2-5 mm, and the reticulation is obvious; Petiole is slender, 2.5-6 cm long, with 2 glands at the top; Stipules are blunt at the top, about 65438 0 mm long. Flowers are unisexual, monoecious, aggregated into terminal racemes, 6- 12 cm long. Female flowers are usually born at the lowest part of inflorescence axis or rarely at the lower part of female flowers, and a few male flowers are born. Male peanuts are on the upper part of inflorescence axis, or sometimes the whole inflorescence is male. Male flower: the pedicel is slender, long 1-3 mm, and gradually thickens upward; Bracts are broadly ovoid, about 2 mm long and wide, slightly pointed at the top, with nearly kidney-shaped glands on both sides of the base, and each bract has 10- 15 flowers; Bracteoles 3, unequal, margin lacerate; Calyx cupular, 3-lobed, lobes obtuse, irregularly denticulate; Stamens 2, rare 3, protruding from calyx, filaments separated, nearly as long as spherical anthers. Female flower; Pedicel stout, 3-3.5 mm long; Bracts are deeply 3-lobed, lobes are acuminate, and glands on both sides of the base are the same as those of male flowers. There are only 1 female flower in each bract, and 1 female flower and several male flowers coexist in axillary bud. Calyx 3-parted, lobes ovate to ovate-lanceolate, apex mucronate to acuminate; Ovary ovoid, smooth, 3-loculed, style 3, base connate, stigma revolute. Capsule pear-shaped, black at maturity, diameter 1- 1.5 cm. When there are 3 seeds, the mericarps fall off and the leaf axils remain; Seeds oblate, black, about 8 mm long and 6-7 mm wide, covered with white waxy aril. The flowering period is from April to August.