Not to answer your question, but.

There is a group of flowers known as xxx pink (xxx = e.g., swamp, mullein, clove, etc.) the colors of which seem to center vaguely around the color we now know as pink. Have to run an OED to find out which way that went.

AHD lists the origin of the word pink in the context of color or flowers as Unknown. The other pink comes from the Latin pingere.