C. articulatus can refer to a few different species. The specific epithet means 'jointed' or 'articulated.'
Celastrus articulatus, synonym for Celastrus orbiculatus, a plant in the family Celastraceae , a weevil in the family Brentidae , a cactus in the family Cactaceae , a mollusk in the family Chitonidae Chlorocyperus articulatus, synonym for Cyperus articulatus, a sedge in the family Cyperaceae , a seaweed in the family Rhodomelaceae , a plant in the family Lamiaceae Conus articulatus, synonym for Conasprella articulata, a sea snail in the family Conidae , a grass in the family Poaceae Crotalocephalus articulatus, a species of Crotalocephalus trilobite Curio articulatus, a plant in the family Asteraceae , a fern in the family Thelypteridaceae Cyperus articulatus, a sedge in the family Cyperaceae