叶无柄或具短叶柄，对5毫米的叶柄；不青春期的花被筒在里面。
Leaves sessile or shortly petiolate, petiole to 5 mm; perianth tube not pubescent inside.
无柄的叶没有叶柄。
北柴胡茎从生或单生，茎基部无纤维状叶柄，残基物为紫红色；
North-Chaihu's stem tufts or grows single, there isn't any fabric leafstalk, and the remnant is purple red.
北柴胡茎从生或单生，茎基部无纤维状叶柄，残基物为紫红色；
North-Chaihu's stem tufts or grows single, there isn't any fabric leafstalk, and the remnant is purple red.
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