C. poeppigii may refer to:

Campylocentrum poeppigii, a rare orchid Canna poeppigii, a garden plant Carex poeppigii, a true sedge Citharexylum poeppigii, a flowering plant Cyathea poeppigii, a tree fern Cyathus poeppigii, a bird's nest fungus Cyperus poeppigii, a papyrus sedge