I think it's mussaenda philippica var. aurora.

It is a mussaenda, but I do not think it is aurora, which has denser clusters of white than the one you have pictured.

Bill

maybe Mussaenda frondosa. Leaves don't look quite right to me, but this species definitely only has one white sepal per orange flower.

This is exactly the plant that has been grown here for well over half a century, under the name M. frondosa. My grandfather had one in his garden in the 1950s, and that was in a Sydney suburb that experienced some frost every winter.

Later I tried to pin it down in the botanical literature and bagan to have doubts it was the true M. frondosa, but never did find a satisfactory identification. M. frondosa belongs to a group of very similar species from southern Asia.

Thanks everyone!
It is definately a Mussaenda. I Googled it and frondosa looks like it (though there where pictures of Aurorea that looked like it too!)
I will try to propagate it taking stem cuttings.
-Gwenn

Ray, you'd definitely know if you had 'Dona Aurora'--and that's not it in your picture. There would be such a gob of white sepals this time of year. 2-4 clustered per orange flower, and your plant seems to have one only.

M. frondosa has different leaves than your pic, but who knows, maybe your plant has slightly rounder leaves beacuse of the soil, light or other cultural factor. But, you could so easily have one of hte species that no really grows so there's little literature and a good photo for ID of it!

Hey, just a thought--how large are these white sepals? are they less than 2"? I wonder if there is a white form of the usual pale yellow M. flava out there?

This is what the plant looks like year round- no chnage in the amount of white.
The sepals range in size, but most are larger than 2 inches.

I like the plant- whatever its actually name is! Thanks-
Gwenn