sporophyte

Concise Oxford English Dictionary © 2008 Oxford University Press:
sporophyte /ˈspɒrəfʌɪt, ˈspɔː-/

▶noun Botany (in the life cycle of plants with alternating generations, e.g. ferns) the asexual phase (typically diploid), which produces spores from which the gametophyte arises.

– derivatives
sporophytic adjective.