Argemone ochroleuca

Mexican poppy

Other common names:

Prickly poppy, white thistle, yellow poppy.



The annual weed can grow up to 120cm tall, yet is usually 20 to 40cm tall. The weed is distinct in three ways (i) its variegated leaf colour, (ii) the leaves being prickly and lobed in shape which can grow up to 20cm long, and (iii) its distinct yellow flower which have a dark red 3 to 6 lobed stigma present. The weed is a prolific seeder. The weed also has a single taproot.


Susceptible Turf:

Warm-and cool-season turf grass varieties.


Control options:

  • Pesticides: See available tabs below for registered products. Use as per label instructions.
  • Integrated Pest Management (IPM): Use a combination of approaches listed on this page.
  • Cultural: Nil.
  • Mechanical: Slashing and mowing.



Prickly poppy or Mexican poppy, Argemone ochroleuca, Brisbane City Council Weed Identification Tool (



Turf Finder or its developer accepts with no responsibility for any consequences whatsoever resulting from the use of any information or product(s) listed herein. Products are to be applied as per label instructions.

Control Options

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