C. sinensis

C. sinensis may refer to:
 * Camellia sinensis, a plant species whose leaves and leaf buds are used to produce tea
 * Celtis sinensis, the Chinese hackberry, a flowering plant species native to slopes in East Asia
 * Centropus sinensis, the greater coucal or the crow pheasant, a bird species widespread in Asia, from India, east to south China and Indonesia
 * Cephalotaxus sinensis a coniferous shrub or small tree species native to central and southern China
 * Citrus sinensis, the sweet orange
 * Clonorchis sinensis, a human liver fluke species
 * Cryptolepis sinensis, a plant species
 * Cordyceps sinensis, a species of fungus

Synonyms

 * Calyptraea sinensis, a synonym for Calyptraea chinensis, a sea snail species