目前为止，中国西南野生生物种质资源库共保藏该物种: 种子19份; DNA材料31份; DNA10份;

• 科:桑科    Moraceae
• 属:柘属   Maclura
• 种:柘   Maclura tricuspidata

5. Maclura tricuspidata Carrière, Rev. Hort. 1864: 390. 1864. 柘 zhe Cudrania tricuspidata (Carrière) Bureau ex Lavallée; C. triloba Hance; Morus integrifolia H. Léveillé & Vaniot; Vanieria tricuspidata (Carrière) Hu; V. triloba (Hance) Satake.Shrubs or small trees, 1-7 m tall, deciduous. Bark grayish brown. Branchlets slightly ridged, glabrous; spines 0.5-2 cm. Winter buds reddish brown. Petiole 1-2 cm, sparsely pubescent; leaf blade ovate to rhombic-ovate, occasionally 3-lobed, 5-14 × 3-6 cm, abaxially greenish white and glabrous or sparsely pubescent, adaxially deep green and glabrous, base rounded to cuneate, margin entire, apex acuminate; secondary veins 4-6 on each side of midvein, tertiary veins reticulate. Inflorescences axillary, single or in pairs. Male inflorescences capitulate, ca. 5 mm in diam.; peduncle shorter than capitulum. Female inflorescences 1-1.5 cm in diam., axillary; peduncle short. Male flowers: calyx lobes fleshy, margin revolute, apex thick; pistillode pyramidal. Female flowers: calyx lobes with margin revolute, apically shield-shaped; ovary immersed in lower part of calyx. Fruiting syncarp orange red when mature, ± globose, ca. 2.5 cm in diam. Fl. May-Jun, fr. Jun-Jul.Sunny forest margins, mountain slopes; 500-2200 m. Anhui, Fujian, SE Gansu, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, S Shanxi, Sichuan, Yunnan, Zhejiang [Japan (cultivated), Korea].The bark fibers are used for making paper, the leaves are used as food for silkworms, the fruit are edible, and the bark is used medicinally.【引自：Flora of China】