Of or relating to plants that reproduce sexually through cross-pollination from different plants.
From allo- (other) + -gamous (reproducing through union, from Greek gamos). Botanical term developed alongside microscopy and genetics to describe breeding patterns in plants.
Allogamous plants literally 'need' to mate with a different plant—they've evolved to be incompatible with their own pollen, which is nature's way of forcing genetic diversity and preventing inbreeding depression.
Complete word intelligence in one call. Free tier — 50 lookups/day.