This is _Kleinia_, a genus from Asteraceae family. It is a succulent native to Africa.
I found a number of possible candidates, there may be more:
1. Kleinia abyssinica
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2. Kleinia fulgens
3. Kleinia stapeliiformis
4. Kleinia pendula
P.S. There's not much free information from authoritative sources online about this genus. There are similarities in the blossoms' colour across the Genus and also differences within a single species so to do a species level ID more information about the plant is needed.