Euphorbia milii, Venice, Florida, January 2007. This may be the same variety posted by vcr1. Grows in a pot in full sun; blooms all year.
Euphorbia splendens -- unnamed variety -- salmon/red flower
Photo taken at Columbus Cactus & Succulent Club show.
A thorny slow growing Euphorbia. Likes full to part sun, the bright red 1/2\\\" flowers brighten up any space. This plant is about 6 years old.
I believe this is a hybrid called Sap Sunsai. This is the 2nd year in this pot. Blooms in full FL sun all the time!