The Collaborative International Dictionary of English v.0.48:
Kolkwitzia \Kolkwitzia\ prop. n. A Chinese genus having only one species, the beauty bush. Syn: genus Kolkwitzia. [WordNet 1.5]WordNet (r) 3.0 (2006):
Kolkwitzia n 1: Chinese genus of 1 species: beauty bush [syn: Kolkwitzia, genus Kolkwitzia]