“…Compare with habit, distribution, chromosome number, chemical composition and etc., we found the two main clades differ in habit, ecology, distribution, chromosome number and chemical composition, the Blumea DC. clade contains mostly perennial shrubs or subshrubs, and mostly distributed from evergreen forests, and also with the same chromosome number (2n = 18)and chromosome structure (6M+8m+4sm) (Lu, 1996), also the chemical composition are similar (Pang, Wang, Fan, Chen, Yu, Hu, Wang & Yuan, 2014). And clade II, which is a widespread paleotropical group that comprises mostly annual, weedy herbs of open forests and fields.…”