Erythrostemon yucatanensis var. hondurensis Erythrostemon yucatanensis var. yucatanensis Erythrostemon yucatanensis var. chiapensis
Caesalpinia yucatanensis Poincianella yucatanensis Caesalpinia yucatanensis subsp. yucatanensis Caesalpinia yucatanensis var. yucatanensis
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024