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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Nectar metabolites clustered by preferred pollinator. Hierarchical clustering analysis of the 27 quantified nectar metabolites grouped by preferred pollinator. Sugars are highlighted in green and phagostimulatory amino acids are highlighted in orange.