Kirchoff BK, Pfeifer E, Rutishauser R. Plant structure ontology: How should we label plant structures with doubtful or mixed identities?. Zootaxa [Internet]. 2008 Dec. 5 [cited 2025 May 3];1950(1):103–122. Available from: https://www.mapress.com/zt/article/view/zootaxa.1950.1.10