You searched for: “anthropochory
Dispersal of plants or animals, accidentally or otherwise, by humans; such as, by dispersal of spores by adherence to clothing.

This involves disseminules or reproductive plant parts, such as seeds, fruits, or spores that are modified for dispersal by people.

Word Entries at Word Info: “anthropochory
anthropochory (s) (noun), anthropochories (pl)
1. Dispersal of plant or animal spores, seeds, etc., accidentally or otherwise, by humans because of the adherence to clothing or by throwing elements of fruit, etc., on the ground.
2. Dispersal of plant and animal disseminules by humans: Anthropochory involves seeds, fruits, spores, or other structures that are modified for distribution purposes of reproduction.