Purple Plant

Plants produce an abundance of a pigment called anthocyanin. The color of anthocyanin is pH-dependent and ranges from red to blue. In corn, the buildup of anthocyanin pigment usually results in purple coloration. Plant tissues that express the purple color are determined by the presence of other genes.

Rows of plants in a plot shows different parts of the plant are purple, but otherwise the plants look normal.
Plants with purple leaf blades, leaf sheaths, and stems.
Stalks where the stem is the most purple part of the otherwise green plant."
Plants with intensely purple stems.
Close-up of a hairy purple leaf sheath surrounded by green leaves.
Close-up of leaf sheath.
Close-up of husks on a maturing plant shows the husks are purple and the rest of the plant is more green.
Purple husks.
Close-up of mature, dark brown plant shows husks are a dark brown-purple.
Nearly mature ear with purple husks.