This is one of three common non-native mallows. Unlike Bull Mallow and Cheeseweed (Malva nicaeensis & parviflora, see above) it is a large shrub. It has correspondingly large leaves, coarse, shallowly 5-lobed, up to 10 cm long. The flowers are similar to the others named: 5-petaled, white to pinkish, with darker pink veins and coarse, roundish to kidney-shaped leaves, often more or less folded. This has petals more than twice as long as the calyx. Calyx lobes are triangular, with acute tips. Fruits are flattish, with 5–6 segments. Bractlets are ovate to round, and shorter than the calyx.