Stems terete, sparsely hairy, (bark not corky). Leaves not pungent, glabrous or subglabrous to short-hairy, not soft-hairy; stipules linear-subulate, 2–5 × 0.5–1 mm, eglandular; petiole glandular, glands cuplike; blade roughly symmetric, 2–7 × 2.5–16 cm, as wide as to usually wider than long, 3–9-lobed, primary lobes 3 and often further lobed, lobes acute, middle primary lobe much shorter than to ± as long as lateral 2 primary lobes, margins entire; abaxial fine veins moderately to prominently raised, abaxial nectaries usually absent, sometimes present near leaf margins but not forming lines. Floral bracts obscure, linear-subulate, 1 × 0.2–0.5 mm, margins entire, eglandular. Flowers: floral tube absent; sepals green, 6–10 × 2–4 mm; petals absent; corona filament whorls 2, outer filaments purple basally, yellow apically, or yellow throughout, linear, terete to slightly transversely compressed, 3–7 mm. Berries dark blue to black, globose to dorsiventrally compressed, 6–12 × 6–12 mm. 2n = 24.
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