rachis

A determinate cymose inflorescence with a zigzag rachis;often used in the same sense as helicoid.

蝎尾状 Scorpioid 花序轴“之”字形有限聚伞花序。

Rachis and pedicels lanuginose or tomentose; bracts orbicular-ovate, 5–7 mm, both surfaces densely sericeous; calyx adaxially densely sericeous; leaf base subcordate.

轴和花梗被绒毛或者被绒毛；卵形苞片圆形，5-7毫米，两面密被绢毛；正面花萼是密被绢毛；叶基部近心形。