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2份; DNA材料7份; DNA1份;

• 科:百合科    Liliaceae
• 属:龙血树属   Dracaena
• 种:剑叶龙血树   Dracaena cochinchinensis

1. Dracaena cochinchinensis (Loureiro) S. C. Chen in F. T. Wang & Tang, Fl. Reipubl. Popularis Sin. 14: 276. 1980. 剑叶龙血树 jian ye long xue shu Aletris cochinchinensis Loureiro, Fl. Cochinch. 1: 204. 1790; Dracaena loureiroi Gagnepain, nom. illeg. (included A. cochinchinensis); Pleomele cochinchinensis (Loureiro) Merrill.Plants treelike, 5--15 m tall. Stems branched, sometimes to 1 m thick, reddish apically; internodes much shorter than wide; bark grayish white, becoming grayish brown with age, smooth. Leaves crowded at apex of branches, sessile, sword-shaped, 30--100 × 2--5 cm, leathery, base reddish, completely covering internode. Inflorescence terminal, branched, more than 40 cm; rachis densely papillose-pubescent. Flowers in clusters of 2--5; pedicel 3--6 mm, articulate distally. Perianth milky white, 6--8 mm; tube 1.5--2 mm; lobes 5--6 mm. Filaments flat, 0.5--0.7 mm wide, reddish brown tuberculate distally. Berry orange, subglobose, 0.8--1.2 cm in diam., 1--3-seeded. Fl. Mar, fr. Jul--Aug.Limestone slopes; 900--1700 m. SW Guangxi, S Yunnan [Cambodia, Vietnam].The dried resin, called xue jie (?a??) or dragon’s blood, is used medicinally. The collection of this resin, together with habitat destruction, has made Dracaena cochinchinensis a vulnerable species in China.【引自：Flora of China】

乔木状，高可达5-15米。茎粗大，分枝多，树皮灰白色，光滑，老干皮部灰褐色，片状剥落，幼枝有环状叶痕。叶聚生在茎、分枝或小枝顶端，互相套迭，剑形，薄革质，长50- 00厘米，宽2-5厘米，向基部略变窄而后扩大，抱茎，无柄。圆锥花序长40厘米以上，花序轴密生乳突状短柔毛，幼嫩时更甚；花每2-5朵簇生，乳白色；花梗长 3-6毫米，关节位于近顶端；花被片长6-8毫米，下部约1/4-1/5合生；花丝扁平，宽约0.6毫米，上部有红棕色疣点；花药长约1.2毫米；花柱细长。浆果直径约8-12毫米，桔黄色，具1-3颗种子。花期3月，果期7-8月。 【引自：中国植物志】