ROSACEAE, Rose family
Trees, shrubs. and herbs, sometimes climbing; leaves alternate (rarely opposite), simple or compound. stipules or stipule-scars usually present; rarely dioecious; flowers perigynous or epigynous (rarely merely hypogynous), bisporangiate or rarely monosporangiate; perianth usually regular; sepals usually 5 (3-8), sometimes subtended by a circle of bracts; petals usually 5, separate. rarely none; stamens 5-many, separate; carpels 1 or few to many, separate or united; when solitary, the carpel is free from the hypogynous hypanthium and fruit is a drupe or rarely an achene; when 2 to many, separate, carpels are free from the hypogynous hypanthium and fruit is an aggregate of achenes, follicles, or drupelets; when 2-5 carpels are united, the flower is epigynous (hypanthium is adnate to the ovary), styles or style-branches, stigmas, and locules are as many as carpels (except when, rarely, locules become twice as many by growth of a false septum in each carpel), placentae are axile, and fruit is a pome.
Rosaceae