Species within a genus

gravis, = of smell or flavour,- strong, unpleasant, offensive; oleo, = te emit a smell of any thing. olens, = smelling, oderous. graveolens, = strong-smelling; in a bad sense, ill-smelling, noisome, rank. (smelling, oderous, pleasant or unpleasant) (strong-smelling, ill-smelling)
(ld, BL)

viscum, = the mistletoe (bird-lime made from the berries of the mistletoe); -osus, = indicates abundance or full or marked development. viscosus, = full of bird-lime, sticky, viscous. (viscid, glutinous, sticky)
(ld, BL, Ox)