| Growth form | Ascending to scrambling | Prostrate to scrambling | Prostrate to ascending |
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| Leaf-sheath margin | Glabrous to sparsely setose, hairs light brown to rusty | Glabrous to setose, hairs light brown to rusty | Hirsute, hairs rusty to rusty-brown |
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| Spathe | Pale greenish-white to greenish-white, sometimes margin fuchsia to vinaceous near the apex, externally glabrous to ciliate with hook-hairs, hairs hyaline, margin flat, apex acuminate, slightly falcate | Pale greenish-yellow to yellowish-green, generally suffused with fuchsia to vinaceous along the margin, externally glabrous, rarely with occasional hook-hairs, hairs hyaline, margin repandous, apex acuminate, slightly falcate | Light green, base only basally connate, splitting open in fruit, truncate to subcordate, externally minutely villous with eventual cilia, hairs hyaline, cilia rusty to rusty-brown, margin flat, apex acute, straight |
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| Pedicel | Sparsely puberulous to puberulous with minute hook-hairs | Sparsely puberulous with minute hook-hairs | Puberulous with minute hook-hairs |
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| Paired petal limb | Widely rhombic-reniform to reniform, white, base cordate | Widely rhombic-reniform to reniform, pale lavender to light pink, base cordate, | Rhombic to rotund, white, base round to subtruncate |
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| Medial petal | Lanceolate, margin revolute at mid-length, forming a medial constriction, white, apex acute | Spathulate to oblanceolate, cucullate, pale lavender to light pink, apex round | Elliptic to narrowly oblanceolate, flat, white, apex obtuse |
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| Antherodes | Narrowly hastate, minute pollen sacs between the upper and lower lobes present, upper lobes conspicuous, oblong, smaller than the lower, lower lobes oblanceolate | Subtrapezoid, minute pollen sacs between the upper and lower lobes absent, upper lobes reduced, smaller than the lower, lower lobes reduced | Cordate, minute pollen sacs between the upper and lower lobes absent, upper lobes absent, lower lobes obovoid |
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| Lateral anthers | Elliptic to ovate | Subcordate to cordate | Subcordate |
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| Medial anther | Widely sagittate, connective saddle-shaped, pale yellow | Widely sagittate, connective saddle-shaped, pale yellow | Widely oblong to widely elliptic, connective oblong, yellow |
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| Capsules | 6–9 per spathe, widely ellipsoid to widely oblongoid | 2–4 per spathe, widely obovoid | 2–4 per spathe, subglobose to globose |
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