| | 1. Trees; leaves compound, leaflets 7–15+ |
| |
| | 2. Perianth parts 1–7, unequal, bract–like; stamens 4–7 in 1 whorl |
| PISTACIA (no key) |
| | 2' Sepals 5, petals 5; stamens generally 10, in 2 whorls |
| SCHINUS |
| | 1' Shrubs, sometimes vine- or tree-like; leaves simple to compound, leaflets 3–5 |
| |
| | 3. Leaves simple, evergreen; petals white to pinkish |
| |
| | 4. Fruit 2–3 mm diam, glabrous; inflorescence branches slender |
| MALOSMA (no key) |
| | 4' Fruit 6–10 mm diam, sticky, puberulent, or short-glandular–hairy; inflorescence branches stout |
| RHUS |
| | 3' Leaves deeply lobed to compound, leaflets 3–5, deciduous; petals yellow to yellow-green |
| |
| | 5. Inflorescence terminal, branches stiff; flowers ± sessile; leaflets dull above; fruit red |
| RHUS |
| | 5' Inflorescence axillary, branches slender, loose, generally arched; flowers pedicelled; leaflets shiny above; fruit creamy white |
| TOXICODENDRON (no key)
|