1A.	Leaflets (15-) 20–30 (-44) pairs per pinna, 3–15 × 1–1.3 mm, 2–7 times as long as wide, separated by intervals less than their width	2
1B.	Leaflets (7-) 8–24 pairs per pinna, 15–65 × 1.5–6 mm, 5–15 times as long as wide, spaced 5–18 mm apart	4
2A.	Pinnae 2.5–4 cm long; leaflets up to 7 mm long; fruits 6–8 mm wide	N. palmeri
2B.	Pinnae 3–13 cm long; leaflets 5–30 mm long	3
3A.	Leaflets 5–10 mm long, not separated by more than their own wide; fruit 7–14 mm wide	N. laevigata
3B.	Leaflets 10–30 mm long, separated by more than their own wide; fruit 10–18 mm wide	N. chilensis ssp. chilensis
4A.	Leaflets 7–17 pairs per pinna, 2–6.5 cm long, linear–oblong, 5–15 times as long as broad	N. glandulosa ssp. glandulosa
4B.	Leaflets 8–24 pairs per pinna, 1–2.5 cm long, oblong, 5–9 times as long as broad	N. odorata