| 1 | Inflorescence 15-40 cm long, lax. Flowers yellow. Pods 20-60 cm long, terete, glabrous, smooth |
| 1' | Inflorescence up to 15 cm long. Flower pink-reddish |
| 2 | Inflorescence 10-25 cm; bracts early caducous before anthesis. Pods 3-5 cm in diam., coarsely rugose |
| 2' | Inflorescence 3-15 cm; bracts persisting during anthesis. Pods 1-1.5 cm diam., smooth, glabrous or pubescent |
| 3 | Petals 3.5-4.5 cm; pods greyish or brownish velvety |
| 3' | Petals up to 3.5 cm, usually smaller |
