discriminate between (someone or something)
To recognize the differences between people or things. I have a hard time discriminating between Jim and Greg, but they are identical twins after all. You can discriminate between hydrangea and phlox by looking at their leaves.
discriminate between
someone and someone else or something and something else to distinguish between people or between things. I find it hard these days to discriminate between my friends and my enemies. Can you discriminate between this shade of pink and that one?