Cereus bicolor is a rare shrubby cactus that grows up to 10 feet (3 m) tall. Branches are blue-green, with 7 or 8 ribs and areoles covered…
Meaning: Of two colors or having two colors
Derivation: Compound adjective made up of two words, the adverb "bis," meaning "twice," "two times," "on two occasions," or "in two ways," and the noun "color," meaning "color" or "hue"
Whereas the generic name must be unique, there are often two or more genera with the same specific epithet. The same epithet can also be used within a species for subspecies, varieties, and forms.
Here is a full list of succulents with this epithet. Click on the photo or the name of the plant for which you wish to see further information.