Mexican Key Lime Tree.
Look in any bartender's tray across the country and you'll probably find neat triangles of squeezable cut limes. These are Mexican Key Limes (Citrus x aurantifolia) and they add a wonderful boost of flavor when spritzing a cocktail, a glass of sparkling water, or a taco. And don't get us started on the sweet-tart taste of Key Lime pie.
The fragrant flower buds are purple-tinged and open to pure, waxy white. They'll perfume the air with a wonderfully fresh citrus... - Mexican Key Lime Tree.