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Eschscholzia lobbii

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: EschscholziaView DescriptionDichotomous Key

Habit: Annual, perennial herb; sap colorless or orange. Leaf: basal or basal and cauline, 1--4-pinnate-dissected, segments narrow. Inflorescence: cyme, 1--many-flowered. Flower: receptacle funnel-shaped, tip cupped around ovary base, outer receptacle rim occasionally spreading; sepals 2, fused, shed as unit at flower; petals generally 4 (except doubled flowers), free, obovate or wedge-shaped, generally yellow to orange (white or pink), shed after flower leaving crown-like membrane (inner receptacle rim); stamens 12--many, free; carpels 2, style 0, stigma lobes 4--8, spreading, linear. Fruit: oblong, dehiscent from base. Seed: many, 1--2 mm, round to ovate, net-ridged, prominent-discontinuous-ridged, or minutely pitted, tan, brown, or black.
Species In Genus: 12 species: western North America. Etymology: (J.F.G. von Eschscholtz, Russian surgeon, botanist, 1793--1831)

Eschscholzia lobbii Greene
Habit: Annual, erect, 5--15 cm, glabrous. Leaf: basal; 2 × ternate-divided; segments linear, acute. Inflorescence: flower 1. Flower: bud erect, acute, glabrous; receptacle obconic; petals 7--12 mm, yellow. Fruit: 4--7 cm. Seed: 1.4--2 mm wide, round to elliptic, prominently discontinuously ridged, brown. Chromosomes: 2n=12.
Ecology: Open fields, grassland; Elevation: < 800 m. Bioregional Distribution: SNF, GV. Flowering Time: Mar--Apr
eFlora Treatment Author: Gary L. Hannan & Curtis Clark
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botanical illustration including Eschscholzia lobbii


Citation for this treatment: Gary L. Hannan & Curtis Clark 2016. Eschscholzia lobbii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 21, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on October 21, 2016.

Eschscholzia lobbii
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© 2007 Neal Kramer
Eschscholzia lobbii
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© 2006 George W. Hartwell
Eschscholzia lobbii
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© 2005 Gary A. Monroe
Eschscholzia lobbii
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© 2009 Barry Breckling
Eschscholzia lobbii
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© 2015 Barry Rice
Eschscholzia lobbii
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© 2004 Carol W. Witham

More photos of Eschscholzia lobbii in CalPhotos

Geographic subdivisions for Eschscholzia lobbii:
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.
Blue line denotes eFlora flowering time.