| Stipule | 1.5–3 mm long, connate behind the stem, canescent | 6–12 mm long, adnate with petiole, canescent | 3.5–5 mm long, connate behind the stem, grayish brown | 3–6 mm long, connate behind the stem, canescent | 2–3.5 mm long, free, canescent | 3–3.5 mm long, adnate with petiole, canescent |
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| Bract | 2–3 mm long | 7–10.5 mm long | 3–6.5 mm long | 1.5–6 mm long | 1.5–2 mm long | 2.5–4 mm long, linear |
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| Calyx | 2.5–3.5 mm long, teeth equal in length, sparsely pilose, lanceolate | 6.5–12 mm long, teeth equal in length, pilose, subulate | 4–5 mm long, teeth sub-equal in length, pilose, subulate | 3–5.5 mm long, teeth sub-equal in length, sparsely pilose, subulate | 2–3.5 mm long, teeth 2 short, 3 long, pubescent, ovate | 4–6.5 mm long, teeth 2 short, 3 long, pubescent, subulate |
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| Corolla color | Reddish purple | Creamy yellow, vexillum with distinct purple veins | Pale yellow marked with pink, carina pilose | Dirty creamy, vexillum with distinct brown veins | Reddish, vexillum with distinct purple veins | Pinkish to white, vexillum with distinct red veins |
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| Vexillum | 9.5–12.5 mm long, ovate with emarginate apex, glabrous | 11–15.5 mm long, orbicular with distinct claw, with retuse apex, dorsally pilose | 9–15 mm long, oblong, distinct claw, with acute apex, dorsally pilose | 4–5.5 mm long, obovate, with emarginate apex, glabrous | 6–10 mm long, obovate, with emarginate apex, only margin pilose | 6.5–12 mm long, obovate, with distinct claw, with retuse apex, pilose |
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| Wing | 5.6–6.5 mm long, limb oblanceolate, obtuse, with 0.3 mm auricle and claw upto 1 mm long | 6.5–7 mm long, limb oblanceolate, obtuse, auricle and claw equal in length upto 0.7 mm long | 7–8 mm long, limb oblanceolate, obtuse, auricle 0.5 mm long, claw 1.5 mm long | Very small, 1–1.5 mm long, obovate, obtuse, auricle with 0.2 mm long and claw upto 1 mm long | 3.5–4 mm long, limb lanceolate, acuminate, auricle with 0.2 mm long and claw upto 0.3 mm long | Very small, 1.2–2.5 mm long, limb ovate, acuminate, auricle with 0.2 mm long and claw 0.7 mm long |
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| Keel | 8.5–9.5 mm long, limb obliquely elliptic, auricle 0.5 mm long and claw upto 2.5–3 mm long | 10.5–13.5 mm long, limb obliquely oblong to elliptic, slightly curved upper edges, auricle 1.5 mm long and claw upto 2.5–3.5 mm long | 9–10.5 mm long, limb obliquely oblong to elliptic, slightly curved upper edges, auricle 0.5 mm long and claw upto 3–4 mm long | 3–3.5 mm long, limb obliquely elliptic, slightly straight upper edges, auricle 0.5 mm long and claw upto 1 mm long | 5–8.5 mm long, limbs obliquely elliptic, slightly straight lower edges, auricle 0.5–1 mm long and claw upto 2–3 mm long | 5.5–9.5 mm long, limb obliquely elliptic, upper edges slightly folded upward like beak, auricle 0.5–1 mm long and claw upto 1.5–2.5 mm long |
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| Stamen | Stamen tube upto 9–10 mm long | Stamen tube upto 10–13 mm long | Stamen tube upto 8.5–13 mm long | Stamen tube upto 3.9–5 mm long | Stamen tube upto 5–9 mm long | Stamen tube upto 6–10.5 mm long |
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| Carpel | Ovary sessile, ovate upto 0.5 mm long, pilose, style linear, glabrous, narrow upto 7.5–9.5 mm long, stigma straight | Ovary stipe upto 1 mm long, obovate upto 1.5–2 mm long, densely pilose, style linear, glabrous, narrow upto 9.5–13 mm long, stigma slightly curved | Ovary stipe upto 1.5 mm long, obovate upto 1.3–1.9 mm long, densely pilose, style linear, glabrous, narrow upto 9–12.5 mm long, stigma straight | Ovary sub-sessile, stipe upto 0.5 mm long, lanceolate upto 1.5–2 mm long, glabrous, style linear, glabrous, narrow upto 3.5–4.5 mm long, stigma slightly straight | Ovary sessile, ovate, upto 1 mm long, sparsely pilose, style linear, glabrous, narrow upto 4.5–8 mm long, stigma slightly straight | Ovary sessile, ovate to crest, upto 1 mm long, pubescent, style linear, glabrous, narrow upto 5.5–10 mm long, stigma straight |
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| Legume | Nil | Pod 9–13×3–4mm diam, reniform, marginal teeth less than 1 mm long, covered with densely hairs cottony outgrowth | Pod 8.5–12×4–4.5 mm diam, semiorbicular, disc-shaped, disc areolate, covered with densely hairs cottony outgrowth | Pod 7–10×3–4 mm diam, Pod 9–11.5×3–4 mm diam, semiborbicular, appressly pilose, disc reniform, single seeded, densely pitted, margin with ± rounded, acute, covered pilose, faces alveolate, single seeded, covered with densely edge furnished with close small pilose hairs, edge furnished with small outgrowth, disc pitted, margin outgrowth upto 1–1.5 mm long lobes slightly rounded 1–1.5 mm lobes | Pod 10–11.5×9–11 mm diam, orbicular, bilocular, deeply pitted, cottony-pubescent becoming glabrescent; margin 2–3 mm broad |
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| Seed | Nil | 2–2.5 mm diam, reniform, blackish, with smooth shiny surface | 2.5–3 mm diam, reniform, blackish brown, with smooth shiny surface | 2–2.5mm diam, reniform, reddish yellow, with smooth shiny surface | 1–1.5 mm diam, reniform, pale red, with smooth shiny surface | 1.5–2.5 mm diam, oval to reniform, light red, with smooth shiny surface |
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| Polar axis | 35.00–30.00=32.08±0.76 | 32.50–25.00=29.58±1.19 | 30.75–27.25=28.77±0.09 | 35.00–27.50=30.41±1.19 | 35.00–30.00=32.91±0.76 | 37.50–30.00=34.16±1.05 |
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| Equatorial axis | 22.50–17.50=20.00±0.91 | 20.00–15.00=17.91±0.76 | 23.25–19.50=21.25±0.11 | 22.50–17.50=19.58±1.00 | 27.50–20.00=23.33±1.05 | 25.00–20.00=22.50±0.91 |
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| P/E ratio | 1.60 | 1.65 | 1.35 | 1.55 | 1.41 | 1.51 |
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| Length of colpi | 30.00–22.50=26.25±1.07 | 27.50–22.50=25.41±1.00 | 25.45–20.39=22.97±1.19 | 30.00–22.50=25.83±1.23 | 30.00–25.00=27. 50±0.91 | 27.50–22.50=25.50±0.91 |
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| Width of colpi | 2.25–1.75=2.12±0.08 | 2.25–1.50=1.95±0.11 | 2.35–1.75=2.05±1.10 | 2.25–1.75=2.04±0.07 | 2.25–1.75=2.00±0.09 | 2.50–1.75=2.12±0.10 |
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| Apocolpium | 4.50–2.75=3.54±0.30 | 4.50–3.00=3.66±0.22 | 4.25–3.75=4.00±0.12 | 4.50–3.25=3.83±0.19 | 4.25–3.50=3.87±0.10 | 4.25–3.50=3.91±0.10 |
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| Mesocolpium | 17.50–12.50=15.00±0.91 | 17.50–10.00=12.91±1.19 | 15.75–11.75=13.75±0.09 | 15.00–10.00=13.33±0.83 | 15.00–12.50=14.58±0.41 | 15.00–10.00=12.91±0.76 |
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| Exine thickness | 1.50–1.00=1.16±0.08 | 1.75–1.25=1.41±0.08 | 2.25–1.75=2.00±0.04 | 2.00–1.25=1.62±0.12 | 2.25–1.25=1.66±0.15 | 2.00–1.50=1.70±0.07 |
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| Intine thickness | 0.75–0.25=0.45±0.07 | 0.50–0.25=0.37±0.05 | 0.75–0.50=0.62±1.07 | 0.75–0.25=0.45±0.07 | 0.50–0.25=0.37±0.05 | 0.50–0.25=0.41±0.05 |
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| Pollen size | Medium (32.08–20.00) | Medium (29.58–17.91) | Medium (28.77–21.25) | Medium (30.41–19.58) | Medium (32.91–23.33) | Medium (34.16–22.50) |
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| Pollen shape | Prolate | Prolate | Prolate | Prolate | Prolate | Prolate |
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| Pollen symmetry | Radially symmetrical | Radially symmetrical | Radially symmetrical | Radially symmetrical | Radially symmetrical | Radially symmetrical |
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| Pollen view | Obtuse convex | Obtuse convex | Obtuse convex | Obtuse convex | Obtuse convex | Obtuse convex |
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| Exine ornamentation | Micro-reticulate | Supra- reticulate | Micro-reticulate | Micro-reticulate perforate | Micro-reticulate granulate | Reticulate |
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