Name: Christopher S.
Why are some plants purple on the outside?
Good question. Some plants are purple because they have pigments (colorful chemicals) in them that
are purplish. Some of these purplish ones are called beta-cyanin pigments.
Here is a fancy, technical example for red beets
Here are some other plant pigments (colors) for color and nutrition
Anthony Brach, Ph.D
Plants that are green contain a lot of the pigment chlorophyll, but they also have other colors
that you cannot see because there is so much green. Plants that are purple have more of the
pigment anthocyanin than they do chlorophyll so they appear purple even though there is green
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Update: June 2012