Question: To which taxonomical category do both Phellodendron and Boltonia belong?

Related documents: [0]  [DOC] Phellodendron, or cork-tree, is a genus of deciduous trees in the family Rutaceae, native to east and northeast Asia. It has leathery, pinnate leaves and yellow, clumped flowers. The name refers to the thick and corky bark of some (but not all) species in the genus. [END] 
[1]  [DOC] Boltonia is a genus of plants in the sunflower family native primarily to North America with one species in eastern Asia. [END]  
Answer: genus
genus