Stems terete, densely hairy. Leaves pungent, densely hairy, glandular-ciliate; stipules pectinate, 1–8 × 1–4 mm, with glandular bristles or hairs; petiole with glandular bristles or hairs; blade roughly symmetric, 1.5–5 × 1–7 cm, moderately to deeply 3–5-lobed, middle lobe as long as or longer than lateral lobes, margins sharply dentate; abaxial fine veins weakly to moderately raised, abaxial nectaries absent. Floral bracts pinnatifid, 15–35 × 10– 28 mm, margins sharply dentate, with glandular bristles or hairs. Flowers: floral tube cuplike, 5–7 mm deep; sepals white, 17–38 × 6–9 mm; petals white, 16–30 × 6–12 mm; corona filament whorls 5–6, outer 2 whorls white basally, pale purple apically, linear, terete to transversely compressed, 9–25 mm. Berries green to yellow-green, ovoid, 20–35 × 18–30 mm.
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A vine. It can grow 6 m long. The flowers are blue with white.