Sida L.
Annual to perennial herbs or shrubs. Lvs toothed or lobed. Fls axillary and solitary, or in terminal spikes or heads; epicalyx 0; calyx evenly 5-toothed; petals spreading, usually obtuse. Style branches as many as loculi, filiform or clavate. Fr. of usually numerous, 1-seeded, sometimes awned, dehiscent or indehiscent mericarps, arranged in a single flat whorl and separating from central axis at maturity.
c. 200 spp., temperate and tropical, especially America. Naturalised sp. 1.