genus pogonia: small but widely distributed genus of orchids closely related to genus Cleistes;: of damp or boggy areas of north temperate zone
biological group: a group of plants or animals
soliton: (physics) a quantum of energy or quasiparticle that can be propagated as a traveling wave in nonlinear systems and is neither preceded nor followed by another such disturbance; does not obey the superposition principle and does not dissipate