1) Asterid dicot genus 2) Genus collinsonia 
The circumscription of species in Collinsonia has been a source of confusion, and many names have been published. Some authors have recognized as many as 10 species. In 2006, the genus was revised with only four species recognized. The following list of species follows the World Checklist from Kew Gardens in London. ...
[n] - small genus of perennial erect or spreading aromatic herbs
genus Collinsonia noun small genus of perennial erect or spreading aromatic herbs; United States