there are plenty of stunning single-petaled flowers to choose from. Flowers like sunflowers (Helianthus annuus) and coneflowers (Echinacea spp.) are not only beautiful, but also provide vital ...

Many flowers of a single species smell similar, if not identical. After all, they need to lure the same pollinator. Among the double-odor trees, however, clarifying the sex of the flower might ...