SidaSi"da\, n. [NL., fr. Gr. ??? a kind of plant.] (Bot.) A genus of malvaceous plants common in the tropics. All the species are mucilaginous, and some have tough ligneous fibers which are used as a substitute for hemp and flax. --Balfour (Cyc. of India).
|large genus of tropical subshrubs or herbs some of which yield fibers of mucilaginous substances|