1A. Phyllodes ≤3.5 cm long	2
1B. Phyllodes >3.5 cm long	5
2A. Branchlets hairy to some degree	20. A. vestita
2B. Branchlets completely glabrous	3
3A. Heads with 3–12 flowers	13. A. fimbriata
3B. Heads with more than 12 flowers	4
4A. Phyllodes symmetrical with both lower and upper margins curved	15. A. podalyriifolia
4B. Phyllodes asymmetric with lower margin straight and upper margin angled	12. A. cultriformis
5A. Racemes enclosed (when young) by a series of small or large, caducous, imbricate bracts	6
5B. Racemes ebracteate at the base, or with a single small bract	7
6A. Heads with 15–25 cream to pale yellow flowers	18. A. salicina
6B. Heads with 25–78 golden flowers	19. A. saligna
7A. Phyllodes 1–5 mm wide	16. A. pycnantha
7B. Phyllodes >5 mm wide	8
8A. Mature phyllodes appressed hairy	14. A. neriifolia
8B. Mature phyllodes glabrous	17. A. retinodes