Which flowering family can produce specific floral fragrances for long-range attraction to specific bee species?

Clover is part of the pea family, and many species within this family are known for their ability to produce specific floral fragrances that attract certain types of bees. These fragrances play a critical role in pollination, as they help guide bees from significant distances towards the flowers for effective pollination. Clover flowers have evolved not only to emit pleasant scents but also to offer nutritional rewards, like nectar, which are appealing specifically to the bee species they aim to attract, ensuring successful reproduction of the plant.

In contrast, while roses, sunflowers, and daisies can attract pollinators, they generally do not exhibit the same level of specialized scent-based attraction aimed specifically at distinct bee species as clovers do. The main function of the scents produced by these other families may not be as uniquely aligned with attracting specific types of pollinators, thus making clover the most suitable answer in this context.