Berberis haoi is a species of flowering plant in the family Berberidaceae, first described in 1999.T. S. Ying, Acta Phytotaxonomica Sinica 37: 339. 1999. It is endemic to Gansu Province in northwestern China.Flora of China Vol. 19 Page 759 洮河小檗 tao he xiao bo Berberis haoi T. S. Ying, Acta Phytotax. Sin. 37: 339. 1999.
Berberis haoi is a shrub up to 1 m tall. Leaves are deciduous, simple, narrowly oblanceolate to elliptical. Inflorescence is a raceme of 6-10 flowers. Berries are ellipsoid, each with 2 seeds.
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