- Lewisia, genus Lewisia - genus of western North American low-growing herbs having linear woolly leaves and large pink flowers
--1 is a kind of caryophylloid dicot genus
--1 is a member of Portulacaceae, family Portulacaceae, purslane family
--1 has members:siskiyou lewisia, Lewisia cotyledon; bitterroot, Lewisia rediviva