Sida (plant) Sida (plant) Sida is a genus of flowering plants in the mallow family, Malvaceae. They are distributed in tropical and subtropical regions worldwide, especially in the Americas. Plants of the genus may be known generally as fanpetals or sidas. These are annual or perennial herbs or shrubs growing up to 2m tall (6 feet). Most species have hairy herbage. The leaf blades are usually unlobed with serrated edges, but may be divided into lobes. They are borne on petioles and have stipules. Flowers are solitary or arranged in inflorescences of various forms. Each has five hairy sepals and five petals
Calyx (anatomy) Calyx (anatomy) Calyx is a term used in animal anatomy for some cuplike areas or structures. Latin, from "calyx" (from Ancient Greek "κάλυξ, "case of a bud, husk"). The spicules containing the basal portion of the upper tentacular part of the polyp of some soft corals (also called "calice"). A body part of the Entoprocta from which tentacles arise and the mouth and anus are located. The body disk that is covered with a leathery tegumen containing calcareous plates (in crinoids and ophiuroids the main part of the body where the viscera are located). Either a minor calyx in the