This is from a trip to Florida earlier this year. I am having a problem getting the actual JPEG URL, so the link to the picture's individual page is all I can provide right now. Sorry.

http://www.naturebydesignphotography.com/gallery/recent/W_MG_2283

Thanks!

Mandevilla I believe is your flower ID

Thanks Karl. I've been searching and realizing there are so many similar flowers. Even with you identifying it, I still can't tell it apart from an Allamanda. I like taking pictures of flowers, but identifying them isn't my forte!