Malvastrum A. Gray in Mem. Am. Acad. Sc. 11,4 (Pl.Fendler.) 21. 1849. (nom. cons.); Mast. in Hook. f., Fl. Brit. Ind.1:321. 1875; Hutch., Gen. Fl. Pl. 2:563.1967.
Herbs or undershrubs. Leaves elliptic-ovate, entire or lobed. Inflorescence terminal spike or axillary fascicles or flowers solitary. Flowers with 3, linear, persistent bracts. Calyx campanulate. Petals 5, obovate-cuneate, yellow. Staminal tube branched at the apex. Carpels 5-many; ovary 5-many loculed, each locule uniovulate, style branches as many as carpels; stigma capitate. Mericarps indehiscent, with or without awns, strigose. Seeds glabrous reniform, usually exalbuminous.
A genus with 3 species native in tropical and subtropical America, 2 of which are naturalized in other hemisphere.
Only 1 species is known from Pakistan.