| Leaves | Ovate-Oblong pubescent, glandular trichome present | Linear-lanceolate, glabrous, trichomes absent | Ovate-oblong or linear |
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| Inflorescence | 1 or 2 flower per axil | Flowers 2–4 per axils | 3–5 per axil |
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| Flower | 8–15 × 6–8 mm, milky white to pinkish white with a prominent blotch at the throat | 12–16 × 8–10 mm, dull white, yellow or bluish tinged white with no spots at the throat | 7–9 × 5–6 mm, dull white or white with 2 pink spots at the throat |
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| | Basal lobe ovate, obtuse to acute at apex, dull white to yellow or pale | |
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| Basal lobe roughly conical, white | pink | Basal lobe ovate, apex round, pink |
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| Standard keel petal | Distal lobe dolabriform or hatchet | | to purple; Distal lobe ovate or |
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| shaped, white | Distal lobe orbicular or obovate, rounded at apex, dull white to yellow or pale pink | obovate, apex round |
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| Dorsal petal | 1.5–2 ×1.5–2 mm, ovate-ovoid, beak at the base prominent, white to pink; keel absent or often faintly present. | 5.5–6.5 ×5–6 mm, broadly ovate, beak at the base not prominent or absent, dull white to yellow to pink, keel mucronate | 6.5–7.5 ×4–5 mm, broadly ovate, dull white to yellow to pink, keel mucronate |
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| Lower sepal | Saccate with beaked apex, white with red stripes | Boat shaped, pink without any stripes | Dolabriform, pink without stripes |
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| Lateral sepal | 2;5–3 × 0.5.5 mm, linear-falcate, pinkish white | 3.5–6 × ca. 0.5–0.75 mm, linear lanceolate, glabrous, pale green, pale yellow or purple | 6–10 mm long, glabrous |
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| Capsule | Ovate with seeds 1–2 per capsule | Long ellipsoidal beaked, glabrous, seeds 10 per capsule | Ellipsoidal, many seeds |
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| Anther | Yellow | White | Pink |
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| Pollen | 4 colpate square | 3 colpate spherical | 3 colpate spherical |
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