| Leaf blade | 34–52 × 4.5–6.8 cm | 25–35 × 4.5–5.5 cm | 15–20 × 3–5 cm |
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| Petiole | 14–32 cm | 7.5–50 cm | 30–40 cm |
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| Perianth | purplish red to dark purple on both sides | light green with purple spots outside, purplish red inside | reddish-brown, dark purple-brown to nearly purplish-black on both sides |
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| Perianth tube | cup-shaped, 4–6 mm long, Ø 14–16 mm | campanulate, 6–8 mm long, Ø 10–13 mm | shallowly bowl shaped to almost flat, 4–5 mm long, Ø25–35 mm |
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| Perianth lobes | 6, suberect or slightly bend inward, 5–6×4–5 mm | 8(6), reflexed, 5–7×4–5 mm | 6, straight or slightly reflexed, 6–8(10) ×6–8(10) mm |
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| Stamens | ovate or subglobose, facing upwards | ovate or oblong, facing inward | bean-shaped, facing laterally |
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| Pistil | umbrella-shaped | mushroom-shaped | umbrella-shaped |
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| Stigma | Ø 9–11 mm, upper surface glabrous, white to light purplish red, slightly undulated 6 lobed at margin and lobes revolute | Ø 9 mm, upper surface glabrous, white, slightly undulate at margin | Ø 10–14 mm, upper surface finely verrucose, white, with purple mottled along margin, shallowly 3 lobed at margin and lobes revolute |
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| Fruit surface | irregularly tuberculate | not seen | rugose, tuberculate to thorny |
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| Distribution | China: Guangdong | China: Guangdong, Hong Kong | Vietnam: Khanh Hoa |
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