- Leaves simple, alternate, entire, often spiraled.
- Petiole thickened toward base (but not in uncommon distichous species).
- Without stipules.
- T-shaped hairs.
- White latex that exudes slowly.
- Flowers axillary, 5-parted, small and whitish with fused corolla and usually with staminodes.
- Fruit a drupe or berry with edible rind.
- Seed smooth and hard with a conspicuous scar.
Diagnosis: Trees, with white latex usually slow-flowing, without stipules, leaves spiraled, aternate, simple, entire, usually elliptic to oblanceolate, often with petioles gradually thickened toward base, leaf buds clustered at twig tip, inner bark dark red, and with sympodial branching. One group has inconspicuous parallel lateral veins.
|Anacardiaceae||: glabrous, leaf apex rounded, latex watery, oily or aromatic.
|Bignoniaceae||: no latex, glabrous.
|Lauraceae||: aromatic odor, twigs irregularly grooved and ridged, no latex.
|Proteaceae||: some leaves opposite, no latex.
|Sabiaceae||: sparse marginal teeth, no latex.
Diversity: Total: 4 genera, 14 species. Trees 4 genera, 14 species.