Perianth symmetry changed at least 199 times in angiosperm evolution
By E. Reyes, H. Sauquet, S. Nadot. 2016
89 citations recorded by the source corpus.
Subfields: Ecology, Evolution, Behavior and Systematics, Molecular Biology
View Paper: https://www.semanticscholar.org/paper/74a3b95fa14f20e72ce5749a3206e9a76b8c24d5