1) Caryophylloid dicot genus 2) Genus lewisia 
Lewisia is a plant genus, named for Meriwether Lewis who encountered the species in 1806. The native habitat of Lewisia species is north facing cliffs in the western part of North America. Local Native Americans ate the roots, which have also been used to treat sore throats. ==Characteristics== Lewisias are perennial alpine plants native to wester...
(from the article `Caryophyllales`) Lewisia (the tobacco root; Portulacaceae) is a native of North America. It was named in honour of Captain Meriwether Lewis, a leader of the Lewis and ...
[n] - genus of western North American low-growing herbs having linear woolly leaves and large pink flowers
genus Lewisia noun genus of western North American low-growing herbs having linear woolly leaves and large pink flowers