Louisiana Live Oak - Carolyn Kirby writes "I had my wedding pictures taken under a similar yr old oak in the back yard of a family friend." I also married under a canopy of old live oaks in Louisiana - Realtor Cheryl Moulin.
Cucumber tree - found only on Socotra Island, Yemen. The island is very isolated and through the process of speciation, a third of its plant life is found nowhere else on the planet. It has been described as the most alien-looking place on Earth.