1Leaves 1-4-foliolate. Inflorescences 8-16 cm long; pedicels 1.8 mm; style distinct, 1.5 mm. Pods ovoid-oblong, 5.7-8 by 4.2-5.5 by 1.5-2.8 cm, more or less scaly; pericarp thick and woody, with 12-25 distinct vertical ribs shown on the outer surface
1'Leaves often with more leaflets, up to 7-foliolate. Inflorescences (unknown in K. tenuicarpum) 3.5-12 cm long; pedicels 0.5-1.5 mm; style usually obsolete, rarely very short, up to c. 1 mm. Pods not as above
2Pods globose or ovoid, 3.7-5.5 by 3-4.5 by 2-3.5 cm, smooth; pericarp fleshy but fibrous
2'Pods irregularly ovoid or slightly obovoid, 4.2-4.7 by 3.7-4.2 by 1.5-1.9 cm, densely rugulose; pericarp thin woody