The Order Rosales contains nine widely-distributed families of dicotyledenous flowering shrubs, trees and herbs, taking its name from the Rosaceae (rose family). The Order is especially well-represented in the Northern Hemisphere. The Rosales includes Cannabaceae (hemp & hops family), Moraceae (mulberry family), Rhamnaceae (buckthorn family), Ulmaceae (elm family) and Urticaceae (nettle family) and three other small or monotypic families. Leaves are alternate with stipules. Flowers are usually perfect with five sepals and petals, numerous stamens and an inferior ovary, and produce abundant pollen and nectar to attract insects. Sepals are fused at their base. Plants often bear thorns or hairs. Fruits are achenes, drupes or aggregates. Many Rosales are grown for fruit, flowers or other products. The Rosaceae are widely cultivated for their fruit (apple, currant, cherry, peach, pear, plum, raspberry, strawberry). Roses are among the most popular garden plants.
|