Bullfrogs, Turtle, and Unknown Flower

Well my Bullfrogs seem to be happy and content in the pond, no defectors yet. Very cool to see them jumping around, I dont hear them, do Bullfrogs make a croaking sound like some other frogs? I Thought Bullfrogs were real loud, maybe I am just missing it, or maybe its late at night. Anyway seems out of my 5 tadpoles, I have 3 frogs, I know one got snagged by most likely a neighborhood cat, not sure what happened to the other, might just be a slow grower, or I am counting them wrong! Anyway here is one of my latest Frog shots--They dont even flich from the camera being 6 inches away!

Then this shot of my Slider Turtle I thought was funny...looks like he is walking on water. He basically can and does now that the water lettuce has grown almost %100 across the pond. Anyone in the SO CAL Area who wants some Water Lettuce please let me know!

And last but not least.....What type of Flower is this??? I have no idea, its has grown out of one of the containers in the yard, and now covers a fence 8 feet high and around 10 feet long! It grows about a foot overnight it seems! But one of the Coolest Flowers I ever saw? Anyone know what it is? A bit worried about some of those flowers getting into the pond, but its a good distance. Anyway if you have any idea please let me know, especially want to know if its poisionious!