Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.
1 Pinna pairs 4-8 per leaf; leaflet pairs 13-16 per pinna.
..2 Young shoots, leaves, and unripe legumes densely white velutinous; heads 12-17 mm in diameter at anthesis, with < 125 flowers per head; mature legumes 9-13 cm long, 13-18 mm wide; fruit stipe 7-10 mm long
..2 Young shoots, leaves, and unripe legumes glabrous; heads > 18 mm in diameter at anthesis, with > 120 flowers per head; mature legumes 12-19 cm long, 18-21 mm wide; fruit stipe 10-20 mm long