growing in my neighbor's yard for many years. she prunes to the ground each winter so only root-hardy in my area. it is erythrina crista-galli or one of the coral beans. i have not seen another one in cultivation around here but they might be more common in gardens further south of me.
it is attractive to hummingbirds. also armed with sharp thorns. the shrub in the photo is about 4' tall and 6' wide. a member of the pea family. i like it but don't think i have a good spot for one in my (mostly) shady yard.