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Argemone pleiacantha (Southwestern prickly-poppy)
Muller, Thomas L.

Argemone pleiacantha

Argemone pleiacantha Greene

Southwestern Prickly-poppy, Bluestem Pricklepoppy, Southwestern Prickly Poppy

Papaveraceae (Poppy Family)

Synonym(s):

USDA Symbol: ARPL3

USDA Native Status: L48 (N)

All parts of this plant are poisonous. The leaves are pinnately lobed and have very spiny toothed margins and angular lobe tips. The stems are brittle and covered in spines. The foliage will ooze yellow sap if broken.

 

From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual , Perennial
Habit: Herb
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Fruit Type: Capsule
Size Notes: Up to about 4 feet tall.
Flower: Petals 6

Bloom Information

Bloom Color: White , Yellow
Bloom Time: Jan , Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec
Bloom Notes: Blooms mainly in the summer. May flower year-round under the right conditions.

Distribution

USA: AZ , NM

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 75 - Southwest Desert Flora (2020) Southwest Desert Flora
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

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

Metadata

Record Modified: 2022-11-22
Research By: Joseph A. Marcus

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