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Berries black, purple or blue, (4)7–8 mm. long and wide, crowned with the persistent calyx lobes; pyrenes dull yellowish brown, 4–4.7 x 3.5–3.7 x 1.7–2.3 mm., semi-ovoid, the ventral surface fairly flat but with 2 depressed areas, bounded by the raised margin and raised median area, dorsal surface rugose, with a longitudinal median keel and a smooth depressed annular area where the dorsal and ventral surfaces meet.
Leaf blades 0.8–4(9) x 0.6–4(5.5) cm. triangular-ovate, ovate or ovate-reniform, acute to rounded at the apex, cordate at the base, glabrous above, glabrous or with some pubescence at the sides of the midnerve beneath; petiole 0.5–9.5 cm. long, often with lines of short hairs above or ± densely pubescent above at apex; stipules transversely elliptic, 1–2(3) mm. long, not bifid.
A creeping herb. It can have underground stems 30-60 cm long. The leaves are oval to triangle shaped and 1-4 cm long by 1-4 cm wide. They are rounded at the tip and heart shaped at the base. There are several flowers in a group 0.5-1.1 cm wide. These are enclosed in a ring of bracts. The fruit are black berries 7-8 mm long and 7-8 mm wide.
Inflorescences 0.5–1.1 cm. across, several-flowered, enclosed in a whorl of bracts; peduncles 1.3–5(9) cm. long, glabrous, finely papillate-pubescent or densely hairy (see note); bracts leafy, 0.35–1.5 x 0.35–1.1 cm., obovate, rounded-elliptic or rhomboid; flowers not heterostylous.
Calyx glabrous or rarely hairy; tube and pedicel 1.5–2.5 mm. long; limb tube 0.2–1.5 mm. long; lobes 0.7–6.6 mm. long and up to 1.3 mm. wide, subulate, linear-lanceolate, narrowly triangular or distinctly spathulate; disk 0.3–1.1 mm. tall.
Corolla white; tube 3.1–6.5 mm. long, funnel-shaped, glabrous or puberulous outside; lobes 1.2–3 x 0.6–2 mm. ovate-oblong, sometimes shortly joined at the base.
Creeping herb with prostrate often underground stems (10)30–60 cm. long, glabrous, rooting at the nodes and often forming carpets up to 5 x 5 m. across.
Seeds brown, c. 3 mm. x c. 2.6 mm. x c. 1 mm., ± lenticular, dorsally rounded, vena-ally flattened, smooth.
Style 0.3–1 mm. long, widened above; stigma ± capitate, bifid, 0.3–0.5 mm. long.
Anthers situated near centre of the tube.
