Pollination context and abiotic stress reshape variation in floral longevity and its exposure to selection

Floral longevity is thought to evolve by natural selection imposed by pollinators and resource constraints acting on heritable phenotypic variation. In species with pollination-induced wilting, pollination rates may also influence expression of variation, raising questions of how and when floral longevity is shaped by adaptation. We created an experimental range of pollen deposition rates in a wild population of Sabatia angularis (Gentianaceae) against the backdrop of natural abiotic variation.