| | 1. Annual; leaf generally 10–20 cm wide; fruit segments > 10, beaks 3–5 mm, spreading; alien weed |
| A. theophrasti |
| | 1' Perennial or shrub; leaf 1–5 cm wide; fruit segments generally < 10, beaks 1–2 mm; native |
| |
| | 2. Petals 10–20 mm, orange; fruit segments generally 7–10, = or < calyx |
| A. palmeri |
| | 2' Petals 3–6 mm, orange-pink to red; fruit segments generally 5, >> calyx |
| A. parvulum
|