| genus nierembergia | (n) genus of tropical American erect or creeping herbs with solitary flowers |
| cupflower | (n) any of various plants of the genus Nierembergia having upturned bell-shaped flowers, Syn. nierembergia |
| tall cupflower | (n) shrubby Chilean herb having bluish-white tubular flowers used as an ornamental, Syn. Nierembergia frutescens |
| whitecup | (n) prostrate woody South American herb with white tubular flowers often tinged with blue or rose, Syn. Nierembergia repens, Nierembergia rivularis |