Monoecious, climbing or trailing annuals or woody-rootstocked perennials with scabrous hairs. Leaves simple, dentate to palmatifid; tendrils simple. Male and female flowers in axillary clusters (in Victoria) or solitary. Calyx and corolla 5-lobed; hypanthium bell-shaped; stamens inserted at approximately middle of the hypanthium; anthers 3, two 2-locular, one 1-locular, locules straight or slightly curved; disc absent or gland-like. Female flowers with staminodes 3 and minute, or absent; stigma 2- or 5-lobed, style short, sometimes inserted on an annular disc; ovary globose to ellipsoid, ovules many. Fruit globose to ellipsoid, indehiscent, fleshy; seeds few to many, ovate, compressed (in Victoria), smooth, margin sometimes thickened.
4 species, endemic to Australia.
Species were previously included in Mukia Arn. All remaining Mukia species have since been moved into Cucumis. See Schaefer et al. (2008); Telford et al. (2011).