Quick definitions from WordNet (cupflower)
▸ noun: any of various plants of the genus Nierembergia having upturned bell-shaped flowers
▸ noun: Mexican evergreen climbing plant having large solitary funnel-shaped fragrant yellow flowers with purple-brown ridges in the throat
▸ noun: any of various plants of the genus Nierembergia having upturned bell-shaped flowers
▸ noun: Mexican evergreen climbing plant having large solitary funnel-shaped fragrant yellow flowers with purple-brown ridges in the throat