Erect or sprawling, clonal, perennial herb with annual stems to 30 cm, green, glabrous except for minute glandular hairs on young growth; prickles to 5 mm long, abundant on stems, leaves, pedicels and calyx. Leaves ovate; lamina 4–7 cm long, 3–5 cm wide, concolorous, deeply lobed; lobes 1–2 cm long, the margin toothed or lobed; petiole 10–15 mm long, sometimes to 30 mm. Inflorescence 1–6–flowered; peduncle 1–6 cm long; rachis 1–2 cm long, pedicels 1–2 cm long. Calyx 5–8 mm long; lobes lanceolate, 3–5 mm long. Corolla stellate, 20 mm diam., purple. Anthers 3.5–4 mm long. Berry depressed globular, 10–12 mm diam., greenish-yellow with faint green stripes. Seeds not known.
Home