Oil rewarding flowers: Heteropterys hypericifolia A. Juss, Janusia guaranitica (A. St. Hil.) A. Juss and Stigmaphyllon bonariense (Hook. and Arn.) C.E. Anderson (Torretta et al. 2022). Other resources (nectar/pollen): Pontederia cordata L. (Ramello et al. 2021)