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鹿衔草为鹿蹄草科植物鹿蹄草Pyrola tschanbaischanicaChou et Y.L.Chong的全草,又名冬绿。多年生常绿草本,高20～30厘米,地下茎葡萄状,细而长,有节。基部丛生叶,叶片圆或肾圆形,尖端钝圆,基部圆或椭圆形,全绿有细疏圆齿,侧脉羽状较明显,叶柄长。花较小,总状花序,萼片披针形,雄蕊多,雌蕊l,子房扁球形,花柱肉质,弯曲。蒴果扁球形,有棱,花期5～6月,果期9～10月。生于海拔1500～1800米的林下、林缘和草地。(图一)
Lukeng grass is the whole plant of Pyrola tschanbaischanicaChou et Y.L.Chong, which is also known as wintergreen. Perennial green grass, 20 to 30 cm high, underground stems grape-like, thin and long, knotted. Basal clumps, rounded or round kidneys, blunt tips, rounded base or elliptic, all green with sparsely serrate, lateral veins pinnately distinct, petiole long. Small flowers, racemes, bracts lanceolate, stamens numerous, pistil l, ovary oblate, style fleshy, curved. Capsule flat spherical, angular, flowering from May to June, fruiting period from September to October. Born in 1500-1800 meters above sea level under forest, forest edge and grassland. (Figure 1)