Bract
An epicalyx, an additional whorl around the calyx of a single flower, is a modification of bracteoles. In other words, the epicalyx is a group of bracts resembling a calyx or bracteoles forming a whorl outer to the calyx. It is a calyx-like extra whorl of floral appendages. They are present in family Malvaceae, the Hibiscus family. Fragaria (strawberries) may or may not have an epicalyx.