Many acacias grow in tropical and subtropical regions of Australia, Africa, and the Americas.
More than 30 species, most of them shrubs, grow in the United States. They are most common from Texas to California. Catclaw acacia The flowers of most acacias are either yellow or white and grow in round or long clusters. Many species have compound leaves consisting of numerous leaflets. In some species, the leaves grow from wide, flat leafstalks.