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Vascular Plants of California
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Argemone munita

Higher Taxonomy
Family: PapaveraceaeView DescriptionDichotomous Key
Habit: Annual to small tree; sap colorless, yellow, orange, red, or white. Leaf: basal, cauline, or both, simple and entire, toothed, or lobed, or 1--3-pinnate-dissected or compound; cauline generally alternate; stipules 0. Inflorescence: terminal, 1-flowered or cyme, raceme, or panicle; bracts generally present. Flower: bisexual, radial, bilateral, or biradial; sepals 2--3, shed after flower; petals generally 2 × sepals in number; stamens generally many; ovary 1, superior, chamber 1, style 0 or 1, stigmas or lobes 2--many, ovules few to many. Fruit: capsule, dehiscent by valves or pores, +- nut, or breaking transversely into 1-seeded, indehiscent units. Seed: fleshy appendage generally 0.
Genera In Family: 25--30 genera, 200 species: northern temperate, northern tropics; some cultivated (Papaver, Eschscholzia, Hunnemannia), source of opiates. Note: Stylomecon moved to Papaver. Corydalis, Dicentra, Fumaria in Fumariaceae in FNANM, elsewhere. Glaucium flavum Crantz is a waif. According to FNANM (3:300--301), Hunnemannia fumariifolia Sweet (+- like Eschscholzia except sepals free) an occasional waif in California, but documentation evidently lacking. Fleshy appendage of seed sometimes for dispersal by ants.
eFlora Treatment Author: Gary L. Hannan & Curtis Clark, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: ArgemoneView DescriptionDichotomous Key

Habit: Annual, perennial herb, spiny; sap yellow, orange, or white. Leaf: generally cauline, ovate to oblanceolate, toothed or deeply pinnate-lobed, prickly. Inflorescence: terminal, 1-flowered. Flower: sepals (2)3, prickly, with pointed appendage below tip, shed at flower; petals (4)6, free, obovate to obdeltate, crinkled, white, shed after flower; stamens 100--250, free; carpels 3--5, style 0 or 1, stigma lobes 3--5. Fruit: ovate to lanceolate, prickly, dehiscent from top by slits. Seed: many, 1--2.5 mm, round to ovate, net-ridged, brown or black.
Species In Genus: +- 30 species: North America, South America, Hawaii. Etymology: (Greek: a poppy-like plant mentioned by Pliny)
Argemone munita Durand & Hilg.
Habit: Annual or perennial herb, 6--15 dm. Leaf: 5--15 cm, not leathery; lower lobed 1/2 way to midrib. Flower: petals 25--50 mm.
Ecology: Dry, open areas; Elevation: 70--3000 m. Bioregional Distribution: NW (exc NCo), c SNH, s SN, CW, SW, GB, D; Distribution Outside California: northern Baja California. Toxicity: TOXIC but not generally eaten. Flowering Time: Aug Note: Variable in prickle density on stems, leaves.
Synonyms: Argemone munita subsp. argentea G.B. Ownbey; Argemone munita subsp. robusta G.B. Ownbey; Argemone munita subsp. rotundata (Rydb.) G.B. Ownbey;
Jepson eFlora Author: Gary L. Hannan & Curtis Clark
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Botanical illustration including Argemone munita

botanical illustration including Argemone munita


Citation for this treatment: Gary L. Hannan & Curtis Clark 2012, Argemone munita, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on January 18, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora,, accessed on January 18, 2019.

Argemone munita
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© 2017 Keir Morse
Argemone munita
click for enlargement
© 2017 Keir Morse
Argemone munita
click for enlargement
© 2017 Keir Morse
Argemone munita
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© 2008 Steve Matson
Argemone munita
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© 2007 Thomas Stoughton
Argemone munita
click for enlargement
© 2017 Keir Morse

More photos of Argemone munita in CalPhotos

Geographic subdivisions for Argemone munita:
NW (exc NCo), c SNH, s SN, CW, SW, GB, D;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.