Blumea linearis is a member of sect. Blumea DC., a genus of ca. In Taiwan it is represented by twelve taxa, which can be distinguished by the following key. Key to Taxa of Blumea in Taiwan 1. Leaves laciniate B .
Leaves dentate or doubly serrate.
Leaf base or petiole with small auricles. Leaf base and petiole without auricles. Center of receptacle pubescent B. oblongifolia 9. Center of receptacle glabrous. Heads nearly sessile, densely aggregated in a compact spicate panicle B. hieracifolia 10.