In Southern California, the members of this family are all shrubs with resinous or milky sap. The sepals and petals are commonly in 5’s on a cup-like dish with 5 or 10 stamens and 3 styles. The seeds are berry-like, dry or semi-fleshy with a hard center. (Dale 41).
It used to be easy to say that in California we had a single native genus Rhus, with 5 species, but Poison Oak, formerly known as Rhus diversiloba, has been placed in the genus Toxicodendron. Cashews and mangoes belong to this family. (Dale 41).
About 70 genera and 600 species, mostly from warm regions. (Munz, Flora So. Calif. 64).
Upper Newport Bay species within the family.