The upper keys are packed with closely spaces trees with a wide variety of shrubs and groundcovers. When only a few feet apart, trees like the Gumbo Limbo, Wild Tamarind, Poisonwood, Pigeon Plum, Willow Bustic and Soldierwood develop straight trunks.
A group of Wild Tamarind, with their white bark and straight trunks, creates a mood similar to a grove of White Birch in Maine. The peeling bark of Gumbo Limbo and other mentioned trees creates a fascinating effect. You may notice that the larger trees are spaced 10 to 30 feet apart and will eventually dominate as the smaller ones are shaded out.