直立灌木，高可达2米；茎粗壮，丛生；小枝密被绒毛，并有针刺和腺毛，有直立

或弯曲、淡黄色的皮刺，皮刺外被绒毛。小叶5-9，连叶柄长5-13厘米；小叶片椭圆形或椭圆状倒卵形，长1.5-4.5厘米，宽1-2.5厘米，先端急尖或圆钝，基部圆形或宽楔形，边缘有尖锐锯齿，上面 粉红色，无毛，叶脉下陷，有褶皱，下面灰绿色，中脉突起，网脉明显，密被绒毛和腺毛，有时腺毛不明显；叶柄和叶轴密被绒毛和腺毛；托叶大部贴生于叶柄，离生部分卵形，边缘有带腺锯齿，下面被绒毛。花单生于叶腋，或数朵簇生，苞片卵形

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