lycopsida
- n club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta
lycopus europaeus
- n hairy Eurasian herb with two-lipped white flowers
lycopus virginicus
- n a mildly narcotic and astringent aromatic herb having small whitish flowers; eastern United States
lycosa tarentula
- n large southern European spider once thought to be the cause of tarantism (uncontrollable bodily movement)