| Leaf blade | 16–24×5–7.5 cm, margin entire | 9–14×3–5 cm, margin entire | 5–14×2.2–4.4 cm, distal margin denticulate |
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| Petiole | 5.5–17 cm long | 3.5–7 cm long | 7.5–25 cm long |
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| Bracts | white, 10–12 mm long, almost equal to perianth | white, 16-20 mm long, longer than perianth | apex often with red spots, 6 mm long, shorter to perianth |
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| Perianth tube | 7–8 mm long, Ø 7–8 mm | 6 mm long, Ø 7–10 mm | 5 mm long, Ø 5 mm |
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| Perianth lobes | 3–4×4–5 mm, shorter than tube, white both side | 8–10×5–6 mm, longer than tube, white both side | 3.5×4 mm, shorter than tube, inside white and outside often with red spots at apex |
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| Stamens | oblong, 2.5–3×1.5 mm, inserted in the lower part of tube | ovate, 2×1 mm, inserted in the middle of tube | oblong, 2.5×0.9 mm, inserted in the middle or lower one-third of the tube |
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| Pistil | nearly clavate, 6–7mm long | obconical, ca. 7 mm long | clavate, 4.5–5.5 mm long |
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| Stigma | Ø 4–5 mm, upper surface with irregular reddish speckle, lower surface white | Ø 4–5 mm, upper and lower surface all white | Ø 2.5 mm, upper surface white, lower surface dark red |
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