Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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PAPAVERACEAE

POPPY FAMILY

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.

ARGEMONE

PRICKLY POPPY

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)

Native

A. corymbosa Greene

Perennial 4–8 dm; sap orange
Leaf 8–15 cm, prickly on margins and veins, generally less so on upper surface
Flower: petals 20–35 mm; stamens 100–120
Fruit 25–30 mm
Seed 1–1.5 mm
Ecology: Dry slopes, flats
Elevation: 400–1100 m.
Bioregional distribution: East of Sierra Nevada, Mojave Desert
Flowering time: Apr–May
Horticultural information: TRY.

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bioregional map for ARGEMONE%20corymbosa 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 corymbosa
Retrieve dichotomous key for Argemone
Overlay Consortium of California Herbaria specimen data by county on this map
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