is a specific kind of: tree.

is a broader term that covers: Cartagena bark, Cinchona cordifolia, Cinchona lancifolia | calisaya, Cinchona calisaya, Cinchona ledgeriana, Cinchona officinalis | Cinchona pubescens, cinchona tree.

has as a part: cinchona, cinchona bark, Jesuit's bark, Peruvian bark.

is a member of: genus Chinchona, genus Cinchona.