Plant Ontology GEneral Multilingual Environmental Thesaurus Source
http://purl.obolibrary.org/obo/PO_0025281 http://www.eionet.europa.eu/gemet/concept/6392 LOOM
http://purl.obolibrary.org/obo/PO_0009046 http://www.eionet.europa.eu/gemet/concept/3312 LOOM
http://purl.obolibrary.org/obo/PO_0025034 http://www.eionet.europa.eu/gemet/concept/4730 LOOM