Abstract
This article comments on: Philipp Giesemann and Gerhard Gebauer, Distinguishing carbon gains from photosynthesis and heterotrophy in C(3)-hemiparasite–C(3)-host pairs, Annals of Botany, Volume 129, Issue 6, 12 May 2022, Pages 647–656 https://doi.org/10.1093/aob/mcab153