Most common in the United States is the muskmelon (Cucumis melo, reticulatus group). This type, which is often incorrectly identified as a cantaloupe, is characterized by a raised, netlike rind on the outside. Most muskmelons are orange inside, though some varieties have green flesh. Winter melons (C. melo, inodorus group), such as the honeydew or casaba, were traditionally harvested unripe and stored until Christmastime. They have a hard, smooth rind and delicate, fragrant, and often (as in the case of the honeydew) sticky flesh. The cantaloupe (C. melo, cantalupensis group) is named for Cantalupo, Italy, where supposedly this type of melon was first grown in Europe. Cantaloupes are recognized for their sweet flavor; and included in this category are the ogen, an Israeli hybrid with yellow skin, green stripes, and green flesh; the warty, archaic looking "true", or European, cantaloupe; and the smooth-skinned charentais, a derivative of the warty cantaloupe—and arguably the finest of all melons.