The Collaborative International Dictionary of English v.0.48:
Diervilla \Diervilla\ n. small genus of low deciduous shrubs; the bush honeysuckles. Syn: genus Diervilla. [WordNet 1.5] Diesel engine DieselWordNet (r) 3.0 (2006):
Diervilla n 1: small genus of low deciduous shrubs: bush honeysuckles [syn: Diervilla, genus Diervilla]