Leaves 2 , arising from the scale axils , membranous , elliptic to ovate , 1 - 4 cm long and 0 . 5 - 2 cm wide , apex rounded or slightly acute , base rounded or cuneate , margin entire and wavy ; veins 3 , middle veins conspicuous , margin veins ca . 0 . 5 mm from the edge ; petiole 1 - 4 . 5 cm long 叶2片自鳞片腋部生出，薄膜质，长椭圆形或卵形，长1 - 4厘米，宽0 . 5 - 2厘米，先端圆或略尖，基部圆形或楔形，边缘全缘呈波状；叶脉3条，中脉明显，缘脉距叶缘约0 . 5毫米；叶柄长1 - 4 . 5厘米。
And the viviparous plantlets of both species are formed for the differentiation of floral primodium , but the position if viviparous plantlets is different . for the species of polygonum viviparum l . , the viviparous plantlets are formed in the inflorences , while in saxifraga cernua l are in the leaf axils . on the results of observation for morphology and anatomy , vascular bundles of viviparous plantlet are connected with that of their parent 从来源和性质看，二者的胎生苗均由花原基直接分化形成；但从位置上看，珠芽蓼在花序中形成胎生苗，而珍珠虎耳草则在地上茎的叶腋部位形成胎生苗；从形态解剖角度观察，胎生苗的维管束与母体的维管束直接相连，胎生苗脱落时，其上已长出叶片1 - 3枚。
Leaves papery , oval in outline , 6 - 7cm long and 8 - 11 cm wide , base rounded or subtruncate , trilobed or sometimes 5 - lobed ; lobes triangular - ovate , rarely ovate - oblong , apex acute or acuminate , margin serrulate , with appressed acute teeth , sometimes entire near base , glabrous or with tufted hairs at vein axils abaxially ; petiole 2 - 3 cm long , glabrous 叶纸质，轮廓阔卵形，长6 - 7厘米，宽8 - 11厘米，基部圆或近截平， 3裂或有时5裂，裂片三角状卵形，有时卵状长圆形，顶端渐尖，边缘有疏而锐利地锯齿，有时近基部全缘，两面无毛或下面脉腋有簇毛；叶柄长2 - 3厘米，无毛。
