虎刺是茜草科常绿小灌木,枝条屈曲,有硬短毛,叶对生,鹅卵形,先端尖,全缘长0.5～1厘米。叶腋间有针状刺一对,故有绣花针之称。3～4月开小白色花,核果小球形。9～10月果熟时由绿色转为殷红色,挂果期较长,能到第二年春。繁殖法有两种:一是每年3～4月播种育苗;二是分离虎刺母体根际发生的萌蘖,另行栽植。分株时期一般在春季或秋季,可全株掘起分成数株,也可从根际一侧挖出幼株分离栽植。 Tiger thorn is Rubiaceae evergreen shrubs, branches buckling, hard and short hair, leaves opposite, goose-shaped, apex sharp, all long 0.5 to 1 cm. Leaf axillary acupuncture between a pair, it is known as the needle embroidery. 3 to 4 months to open a small white flowers, drupe small spherical. From October to October when the fruit ripened from green to Yin red, fruiting longer, can reach the second spring. There are two breeding methods: First, sowing seedlings from March to April each year; the second is the separation of tiger thorn maternal rhizosphere occurs, planted separately. During the ramet stage, usually in spring or autumn, the entire plant can be excavated into several strains, and young plants can also be excised and planted from one side of the rhizosphere.