mallow UK /ˈmæləʊ/US /ˈmæloʊ/ noun2 •Any of a group of flowering plants in several genera of the taxonomic family Malvaceae, especially of the genus Malva. Several species are edible by humans.Gonzalo. Had I plantation of this isle, my lord,— Antonio. He’ld sow’t with nettle-seed. Sebastian. Or docks, or mallows. — 1610 •Larentia clavaria, an uncommon moth found across Eurasia. formsmallows