多项选择题
The leaf,greyish green to brown green,thin fragile leaflets,lanceolate,mucronate,asymmetrical at the base.该叶的特征包括下列哪几项:（）
A．灰绿至棕绿色小叶 B．叶片薄而易碎 C．披针形叶 D．卵圆形叶 E．叶基不对称
A．taste:very sweet B．faintly astringent C．slightly aromatic D．the bark is not bitter E．action and use:bitter