Color Changing Cattelya Orchids


Hybrid Cattelya orchids frequently change colors, here from yellow to pink, as the outer petals age. These two flowers are on the same plant, but the top pictured yellow one (on the left below) just opened. So is this a pink or yellow orchid plant?  Pink, I would say.

Why pink? See this yellow bloom's color change in 30 hours:

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Jabuticaba, vintage 2017.

Or is that an arborage?