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noun
Genus of much-branched treelike or shrubby cacti with pronounced ribs and rounded needlelike spines and nocturnal flowers usually white.
synonym: Cereus.
is a specific kind of: caryophylloid dicot genus.
has as a member: night-blooming cereus.
is a member of: Cactaceae, cactus family, family Cactaceae.
Find more on genus Cereus elsewhere: etymology - rhymes - Wikipedia.
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