Yellow-flowered Mexican Poppy
(Argemone mexicana)

Yellow-flowered Mexican Poppy';

This plant is very similar to the White-flowered Mexican Poppy and can be easily confused. The Yellow-flowered Mexican Poppy is an extremely spiny, herbaceous annual that can grow up to 90cm high. The stems exude a yellow sap when cut. Leaves are grey or bluish-green and spiny with prominent white veins. Bright yellow flowers appear from September to January followed by spiny, egg-shaped green fruit capsules that turn brown and release numerous small black seeds. The sap and spines are poisonous and can cause skin irritation.

Other names
Devil’s Fig, Texas Poppy (English)
Geelblom, Geelblombloudissel (Afrikaans)
ugudluthukela (isiZulu)
Invasive status
NEMBA Category 1b
CARA 2002 Category 1
Originally from
Where is it a problem?
Gauteng, KwaZulu-Natal and the lowveld of Mpumalanga and Limpopo provinces
How does it spread?
Seed dispersal
Why is it a problem?
It is prolific in disturbed sites and competes with agricultural crops and indigenous species. This plant contaminates crop seed. Spiny fruits and leaf tips can adhere to the wool of sheep. The seeds are poisonous to humans and livestock.

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