multi-tissue plant structure morphology trait plant gall morphology trait 2024-03-11T21:05:28Z TO:0003500 Plant galls are formed in response to some biotic stress (PSO:0000004), such as damage caused by an insect, mite, microorganism or other plant. A multi-tissue plant structure morphology trait (TO:0000836) which is a quality of a plant gall (PO:0025626). TO_GIT:505 https://orcid.org/0000-0002-6379-8932 plant_trait_ontology