Newcomer needs flower ID, please

Hi everyone:

I am new to this board and already have a question. Could someone please identify the flower/plant in the attached photo, please?

 

Where was this photograph taken?

 

Asclepias?

 

I took this photo at a conservatory in Pittsburgh, Daniel.

 

Thanks for your suggestion--I'll research that plant more closely.

 

Perhaps Asclepias, perhaps something else in the [WIKI]Asclepiadoideae[/WIKI] - only 2900 species to choose from! Maybe someone will be able to sight-identify it (it is very attractive, so I don't doubt it's been cultivated elsewhere)

 

Calotropis gigantea.

HTH
Chris

 

It is Calotropis gigantea

 

Thanks to all of you for your generous help!