1 | Inflorescence or flower distinctly pedunculate |
1' | Inflorescence or flower sessile or subsessile |
2 | Corolla pink or pink and white, peduncle exaristate; flower and fruit strongly reflexed |
2' | Corolla yellow, yellowish or creamy-white |
3 | Shrubby perennials |
3' | Herbaceous annuals |
4 | Pod torulose |
4' | Pod not torulose |
5 | Peduncle exaristate, or arista very short; pods ovoid or ellipsoid |
5' | Peduncle distinctly aristate; pods oblong |
6 | Pod 20-25 mm long, 5-7 mm. wide; corolla distinctly longer than calyx; flowers frequently in pairs |
6' | Pod 8-17 mm long, 3-4 mm wide; corolla equalling or shorter than calyx; flowers usually solitary |
7 | Keel sharply upcurved to a beak as long as or longer than the basal part; peduncle clothed with long spreading hairs; plant 15-40 cm high |
7' | Keel upcurved to a beak shorter than the basal part; peduncle shortly glandular-pubescent; plant 7-15(-30) cm high |
8 | Corolla yellow or yellowish |
8' | Corolla pink or pink and white |
9 | Leaves 3-foliolate; subshrubby perennial |
9' | Leaves 1-foliolate; maritime annual |
10 | Subshrubby spinescent perennials |
10' | Herbaceous annuals |
11 | Cauline leaves 1-foliolate; calyx with long spreading hairs |
11' | Cauline leaves 3-foliolate; calyx shortly glandular-pubescent or subglabrous |
12 | Standard glabrous externally; stipules of floral leaves whitish and conspicuous |
12' | Standard glandular or hairy externally; stipules of floral leaves not whitish or conspicuous |
13 | Inflorescence a slender, rather lax spike; standard oblong-obovate, 4-5 mm wide; leaflets with 10-20 conspicuous spreading teeth |
13' | Inflorescence a dense oblong spike; standard obovate-orbicular, 6-7 mm wide; leaflets with 12-24(-30) small teeth |