Species-specific responses to combined water stress and increasing temperatures in two bee-pollinated congeners (, Boraginaceae).

Water stress and increasing temperatures are two main constraints faced by plants in the context of climate change. These constraints affect plant physiology and morphology, including phenology, floral traits, and nectar rewards, thus altering plant-pollinator interactions.We compared the abiotic stress responses of two bee-pollinated Boraginaceae species, , an annual, and , a biennial.