| Habit | climber | climber |
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| Stem and branch | striated-angular and rough (covered with warts) | striated-angular and rough (covered with warts) |
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| Tendrils | present | present |
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| Petiole | 1–2 cm long, sheathed with petiolar wings | 1–2 cm long, sheathed with petiolar wings |
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| Petiolar wings | narrow, subacute and wavy edges | narrow, subacute and wavy edges |
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| Leaf blades | ovate-oblong, sometimes elliptic 10–20 cm × 3–7 cm; base obtuse or acute; apex acuminate or often blunt | ovate-oblong or elliptic, 6–13 cm × 4–8 cm; base obtuse or acute; apex sub-acuminate |
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| Nerves | 5–7, the median 3 diverging 6–9 mm above the base | 5–7, the median 3 diverging 4–8 mm above the base |
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| Umbels in Inflorescence | 2, or 1–3; umbels 12–24 flowered | 1, or 2–3; umbels; 14–22 flowered |
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| Receptacle | globose or ellipsoid, 2–3 mm broad | sub-globose, ca. 3 mm broad |
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| Peduncle | 2–3.5 cm long | 2–4 cm long |
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| Pedicel | 5–12 mm long | 5–10 mm long |
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| Tepals | linear-oblong; obtuse at apex; 3–6 mm long; recurved at anthesis | linear-oblong; rounded to sub-obtuse at apex; 5–6 mm long; recurved at anthesis |
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| Stamens | 6; 4.5–6 mm long; anthers oblong, white; filaments 3–3.8 mm long | 6; 4.5–5.5 mm long; anthers oblong, creamish- white; filaments 3–4 mm long |
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| Carpel | ovary ovoid, 3-locular; stigmas 3, recurved | ovary ovoid, 3-locular; stigmas 3, recurved |
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| Fruit | berry, 5–6 mm in diameter | berry, 4–6 mm in diameter |
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