Data from herbarium specimens, our own observations, and citizen science projects show that Euphorbia tithymaloides is a winter flowering plant, with an increase in its floral activity from late October to May in the Antilles, where genetic, ecological and morphological divergence has been documented (red: Greater Antilles; blue: Lesser Antilles). There is a relevant overlap (up to 82%) in flowering activity among the lineages occupying these two areas.

 
 
  Part of: Piña-de la Rosa IA, López-Marmolejo C, Cacho NI (2024) Recent evolutionary divergence in a plant ring-species is not accompanied by floral phenology or pollinator shifts. Plant Ecology and Evolution 157(2): 158-173. https://doi.org/10.5091/plecevo.103095