The Collaborative International Dictionary of English v.0.48:
Hyssopus \Hyssopus\ n. A Eurasian genus of perennial herbs or subshrubs. Syn: genus Hyssopus. [WordNet 1.5]WordNet (r) 3.0 (2006):
Hyssopus n 1: Eurasian genus of perennial herbs or subshrubs [syn: Hyssopus, genus Hyssopus]