Acacia koa - Image of flower and seedpod. Acacia cultriformis - images. Acacia cyanophylla - image Acacia eburnea - image Acacia farnesiana - Photo shows flowers, twigs, and leaves. Acacia pravissima - Photo of this tree in bloom. Acacia decurrens - Short description and medicinal uses. Acacia nilotica - short description and medicinal uses Acacia koa A. Gray (Koa tree) - Discussion of the characteristics, native range, habitat requirements, life history, growth characteristics, uses, and genetics of this Hawaiian tree. Acacia aneura - Illustration and information on the Mulga, and a map of Australia showing its range. Acacia ligulata - Illustration and information on the Sandhill Wattle, and a map of Australia showing its range. Acacia papyrocarpa - Illustration and information on the Western Myall, and a map of Australia showing its range. Acacia baileyana - Photograph of foliage and flowers. Acacia baileyana - Photograph of this tree. Acacia constricta - Information on distribution and occurrence, value and use, characteristics, and fire ecology. Acacia greggii - Information on distribution and occurrence, value and use, characteristics, and fire ecology. Acacia stenophylla - Photographs and much information on this tree found growing near watercourses in Australia. Acacia farnesiana - Botanical description and photo. Common names: sweet acacia, popinac, sponge tree. Acacia saligna - Botanical description and photo. Common names include golden wreath wattle and orange wattle. Acacia - Accounts for all US species.