Embryophytes include the vascular plants, such as ferns, conifers and flowering plants. Phosphorus is essential for flowering or fruiting plants. There are around 14,500 species of flowering plants and trees. Seed dispersal is essential in allowing forest migration of flowering plants. Hundreds of species of flowering plants are documented. Hoverflies are important pollinators of flowering plants worldwide. In fact, ferns are not flowering plants. Farmland hosts a variety of semi-natural vegetation of grasses and flowering plants. Hoverflies are important pollinators of flowering plants in many ecosystems worldwide. Brugmansia is a genus of seven species of flowering plants in the family Solanaceae. Sapindales is an order of flowering plants. Ranunculales is an order of flowering plants. Cannabaceae is a small family of flowering plants. Winter annuals die after flowering and setting seed. The diversity of flowering plants is not evenly distributed.