1) American mountain mint 2) Asterid dicot genus 3) Genus koellia 4) Genus pycnanthemum 5) Koellia 1) Koellia 
Pycnanthemum is a genus of plants in the mint family (Lamiaceae). They are commonly known as mountain mints (or mountain-mints, mountainmints), though `the Mountain Mint` may also be any locally common species in particular. Some are known as koellias, after an obsolete genus name. All of the species in this genus are native to North America. Mo.....
[n] - American mountain mint
genus Pycnanthemum noun American mountain mint