In a Nutshell:
* Argemone mexicana (Mexican poppy, Mexican prickly poppy, flowering thistle, cardo or cardosanto) is a species of poppy found in Mexico and now widely naturalized in many parts of the world.
* . An extremely hardy pioneer plant, it is tolerant of drought and poor soil, often being the only cover on new road cuttings or verges.
* It has bright yellow latex, and though poisonous to grazing animals, is rarely eaten, but has been used medicinally by many people including those in its native area, the Natives of the western US and parts of Mexico.
* The seed pods secrete a pale yellow latex when cut open. This argemone resin contains berberine and protopine.
* The fresh yellow, milky, acrid sap contains protein-dissolving substances and has been used in the treatment of warts, cold sores, cutaneous affections, skin diseases, itches etc.
* When the Spanish arrived in Sonora they added this plant to their pharmacopia and called it cardosanto, which should not be mistranslated to blessed thistle (Cnicus benedictus). Use in Hispanic cultures includes as a sedative and analgesic tea, including for use to help alleviate migraine headaches. The seeds are taken as a laxative.
* Biodiesel production from A. mexicana seed oil using crystalline manganese carbonate has been demonstrated. more...
* Seed - sow April in situ. The seed usually germinates in 3 - 4 weeks at 15°c. more...