FIGURE 3. Occurrence map of Grindelia rheophila (Asteraceae: Astereae). A. South America, highlighting in red the region where the Paraná Domain meets the Pampean Province in southern Brazil (Morrone et al. 2022). B. Ecotone region in the state of Rio Grande do Sul, Brazil, where the Guassupi/Toropi rivers center of endemism is shaded and the species known occurrences are mapped. C. Specific occurrence sites in the ecotone region, associated with the river systems of the area. Map by F. Fernandes.

Published as part of Fernandes, Fernando, Büneker, Henrique Mallmann, Iganci, João, Souza-Chies, Tatiana Teixeira De & Heiden, Gustavo, 2025, Grindelia rheophila (Asteraceae, Astereae): A new species and a river-borne exception in a genus shaped by Deserts, pp. 35-45 in Phytotaxa 720 (1) on page 41, DOI: 10.11646/phytotaxa.720.1.3, http://zenodo.org/record/18413730