The Collaborative International Dictionary of English v.0.48:
Agastache \Agastache\ n. 1. 1 giant hyssop; Mexican hyssop. Syn: genus Agastache. [WordNet 1.5]WordNet (r) 3.0 (2006):
Agastache n 1: giant hyssop; Mexican hyssop [syn: Agastache, genus Agastache]