An erect, branched, very variable annual.

The petals are reported to contain a dark red pigment, namely mecocyanin chloride and another cyanidin derivative. Later investigations have revealed the presence of cyanidin-B and pelargonidin-C in the flowers. An alkaloid rhoeadine is present in all parts of the plant including roots, leaves, flowers and capsules. The capsules contain also the alkaloids morphine, thebaine and narcotine, and meconic acid. Protopine and coptisine, besides a number of other phenolic and nonphenolic, crystalline and amorphous bases have been reported in the roots and aerial parts.

The petals are mucilaginous and bitter. They are expectorant and have been used for cough or hoarseness; they also possess sedative and pain relieving properties. The fresh petals are used for the preparation of galenicals. Syrup or tincture made out of petals is used for coloring medicines and food materials to which they impart a red color and a bitter flavor. The aqueous extracts of the plant exhibit antibiotic activity.

Used in Anti-Wrinkle Cream.