Identifying NOID Blossoms

[LadyGT]

I purchase clearance plants at Lowes that look like they have a chance at surviving. While accumulating a nice collection of rescues, I noticed that the stems have different colors. Some are solid green, and some have red/maroon coloring. My question is directed to those who have a large collection.

Is it possible to figure out the color of the blossoms by looking at the stems?

My original thought was a total green stem would indicate pure white petals. A stem with some sort of red or maroon markings would indicate something with red in the petals.

I have a few rescues that are sending out new shoots on old spikes so I am wondering if my theory is right. I'll know in a few weeks.