Prickly Poppy, Mexican Poppy, Cardo Santo, Chicalote

Argemone mexicana

Family: Papaveraceae

Plant Description: Annual to 60 cm high with prickly stems and prickly-margined leaves 2.5-8 cm long, alternate blades deeply lobed, the lobes sharp-pointed. Flowers terminal, radial the petals 2-3 cm long, yellow, stamens threadlike. Yellow sap.

Plant Trivia: Native to W. Indies

Field Identification:

Occurrence: Occasional in waste places and along roads

Bloom Period: March-June

Plant Use: Oil from seeds has been used as lamp oil in India.

Key to the species of Argemone may be found on the page “Prickly Poppy, Argemone sanguinea.”