Erect, clonal shrub to 2m, usually male or bisexual, rusty-green, densely pubescent with stellate hairs; prickles 2–5 mm long, abundant on calyx-tube of bisexual flower, usually scattered on stems. Leaves lanceolate-elliptic; lamina 3–7 cm long, 1–1.5 cm wide, sometimes larger, discolorous, entire; petiole 5–10 mm long. Male plant: inflorescence up to 50–flowered; peduncle 20–30 mm long; rachis 10–15 cm long, pedicels 2–4 mm long; calyx 4–6 mm long, the lobes triangular, 2–4 mm long; corolla shallowly campanulate-rotate, 25–30 mm diam., purple-blue; anthers 3–4 mm long. Female plant: flowers solitary; pedicels 5–15 mm long, lengthened in fruit; calyx 9–14, sometimes to 20, mm long, enlarged in fruit, the lobes more or less linear, 5–7(10)mm long; corolla rotate, 20–30 mm diam., purple; anthers 3–4 mm long. Berry globular or depressed globular, 20 mm diam.; colour unknown; fruiting pedicels 15–20 mm long; fruiting calyx 25–30 mm diam. Seeds 2 mm long, dark brown.
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A slender shrub. It grows 0.3-1 m high. The flowers are blue or purple.