- genus Nierembergia - genus of tropical American erect or creeping herbs with solitary flowers
--1 is a kind of asterid dicot genus
--1 is a member of Solanaceae, family Solanaceae, potato family
--1 has members:cupflower, nierembergia; whitecup, Nierembergia repens, Nierembergia rivularis; tall cupflower, Nierembergia frutescens