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Argemone munita (Flatbud pricklypoppy)
Bransford, W.D. and Dolphia

Argemone munita

Argemone munita Durand & Hilg.

Flatbud Pricklypoppy, Flatbud Prickly Poppy

Papaveraceae (Poppy Family)



USDA Native Status: L48 (N)

A short-lived, thorny, aggressive, perennial with 2-5 ft. spiny stems, lobed leaves, and showy, 3 in. white or yellow flowers.


From the Image Gallery

4 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Root Type: Tap
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Margin: Dentate
Breeding System: Flowers Bisexual
Fruit Type: Capsule
Size Notes: Up to about 5 feet tall.
Flower: Flowers 3 inches

Bloom Information

Bloom Color: White , Yellow
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov


USA: AZ , CA , ID , NV , OR , UT
Native Distribution: Coast Ranges s. from San Luis Obispo Co., e. to UT.
Native Habitat: A variety of sites from 250-6000 ft.

Growing Conditions

Water Use: Low
Light Requirement: Sun
Soil Moisture: Dry
Soil Description: Various drier soils.
Conditions Comments: Useful only in large, rocky desert or mountain sites where little else will grow. Has the potential to be a very troublesome weed and exudes a sap which, if ingested, is poisonous to humans and range animals.


Warning: Seeds and other plant parts can be toxic if ingested. Sensitivity to a toxin varies with a personís age, weight, physical condition, and individual susceptibility. Children are most vulnerable because of their curiosity and small size. Toxicity can vary in a plant according to season, the plantís different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil.
Conspicuous Flowers: yes


Description: Propagate from seed. Flowers the first year.
Seed Collection: Not Available
Seed Treatment: Fire-treated seeds often have better germination.
Commercially Avail: yes

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Native Seed Network - Corvallis, OR

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America - beta site (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Argemone munita in USDA Plants
FNA: Find Argemone munita in the Flora of North America (if available)
Google: Search Google for Argemone munita


Record Modified: 2022-11-21
Research By: TWC Staff

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