Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.



Curtis Clark

Annual to small tree; sap often colored, often milky
Leaves basal, cauline, or both, generally toothed, lobed, or dissected; cauline generally alternate; stipules 0
Inflorescence: cyme, raceme, or panicle (terminal), or flower solitary
Flower bisexual, generally radial; sepals 2–4, sometimes shed ± at flower; petals generally 4 or 6 (or more), sometimes in 2 unlike pairs; stamens 4–many; ovary generally 1, superior, chamber generally 1, stigma lobes 0–many, ovules 1–many
Fruit: generally capsule, dehiscent by valves or pores, generally septicidal
Genera in family: 40 genera, 400 sp.: n temp, n tropical, s Africa; some cultivated (Papaver, Dicentra, Eschscholzia ). Petal length includes any spur or pouch. Hunnemannia fumariifolia Sweet (Eschscholzia-like garden per with free sepals) an uncommon waif in CA. Corydalis, Dicentra, Fumaria formerly treated in Fumariaceae.



Annual, perennial herb, armed; sap yellow or orange, milky
Leaves generally cauline, oblanceolate to ovate, toothed or deeply pinnately lobed
Inflorescence: flowers solitary, terminal
Flower: sepals 2(3), prickly, with pointed appendage below tip, shed at flower; petals 4 (or 6), free, obovate, crinkled, white, shed after pollination; stamens 12–many, free; placentas 4–6, style 0 or 1, stigma lobes 4–6
Fruit ovate to lanceolate, prickly, dehiscent at tip by slits
Seeds 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: ocular cataract, supposedly remedied by sap of other plants with this name)


A. munita Durand & Hilg.


Annual or perennial herb 6–15 dm; sap generally yellow (rarely red in NCoRH)
Leaf 5–15 cm, ± equally prickly on margins and veins of both surfaces
Flower: petals 25–40 mm; stamens 150–250
Fruit 35–55 mm
Seed 2–2.5 mm
Ecology: Open areas
Elevation: 70–3000 m.
Bioregional distribution: Northwestern California (except North Coast), Central Western California, Southwestern California, Great Basin Floristic Province, Desert
Distribution outside California: n Baja California
Flowering time: Aug
Synonyms: subspp. argentea G.B. Ownbey, rotundata (Rydb.) G.B. Ownbey, and robusta G.B. Ownbey, prickly poppy
TOXIC but not generally eaten
Horticultural information: DRN, SUN, DRY: 1, 2, 3, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24.

previous taxon | next taxon
bioregional map for ARGEMONE%20munita being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Argemone munita
Retrieve dichotomous key for Argemone
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page
  • This page is no longer being maintained.

University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California