More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera

We thank the staff of the cited herbaria for allowing us to study their collection, especially C. Chatelain (G), A. Marrero (LPA), H. Rainer (W), F. Stauffer (G), J. Vicens (BCN), R. Vogt (B), and M. Hjertson (UPS) for sending us images of herbarium specimens. We thank Irene Navas for help with leaf measurements; Lisa Pokorny for helping with fieldwork; Patricia Barbera, Otavio Marques, and Guilherme Antar for checking specimen data for us in some herbaria. Finally, we are grateful to members of the International Euphorbia Society for providing valuable information on the studied species, especially to Rikus van Veldhuisen, Susan Carter, Volker Buddensiek, and Wolfgang Ewest. Authors were supported by grants CGL2015–67849‐P (MINECO/FEDER) to IS and CGL2015–73621‐JIN (AEI/FEDER) to RR. We appreciate the valuable comments from the editor and two anonymous reviewers, and helpful discussions with Victor Steinmann.