\Mal*va"ceous\, a. [L. malvaceus, from malva mallows.
See {Mallow}.] (Bot.)
Pertaining to, or resembling, a natural order of plants
({Malvace[ae]}), of which the mallow is the type. The cotton
plant, hollyhock, and abutilon are of this order, and the
baobab and the silk-cotton trees are now referred to it.