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Vascular Plants of California
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Eschscholzia minutiflora

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.
Etymology: (J.F.G. von Eschscholtz, Russian surgeon, botanist, 1793--1831)
Eschscholzia minutiflora S. Watson
Habit: Annual, erect or spreading, 5--35 cm, glabrous, gray- or blue-glaucous. Leaf: segments short, generally obtuse, entire to shallowly notched. Flower: bud nodding, short-pointed, glabrous, occasionally glaucous; receptacle obconic; petals 3--6(26) mm, yellow, base occasionally orange-spotted. Fruit: 3--6 cm. Seed: 1--1.4 mm wide, generally oblong to elliptic, net-ridged, brown to black. Chromosomes: 2n=12,24,36.
Ecology: Desert washes, flats, slopes; Elevation: < 2600 m. Bioregional Distribution: se SCoRO, SNE, D; Distribution Outside California: to southern Nevada, southwestern Utah, western Arizona, northwestern Mexico. Flowering Time: Mar--May Note: Variable; further study needed to determine if Eschscholzia minutiflora subsp. covillei (Greene) C. Clark (petals 6--18 mm; 2n=24; northern and central DMoj), Eschscholzia minutiflora subsp. twisselmannii C. Clark & M. Faull (petals 10--26 mm; 2n=12; western DMoj) deserve taxonomic recognition.
Synonyms: Eschscholzia parishii, misappl.
Jepson eFlora Author: Gary L. Hannan & Curtis Clark
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: Gary L. Hannan & Curtis Clark 2012, Eschscholzia minutiflora, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on February 06, 2023.

Citation for the whole project: Jepson Flora Project (eds.) 2023, Jepson eFlora,, accessed on February 06, 2023.

Eschscholzia minutiflora
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© 2014 Neal Kramer
Eschscholzia minutiflora
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© 2014 Neal Kramer
Eschscholzia minutiflora
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© 2012 Keir Morse
Eschscholzia minutiflora
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© 2010 Thomas Stoughton
Eschscholzia minutiflora
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© 2009 Steve Matson
Eschscholzia minutiflora
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© 2011 California Academy of Sciences

More photos of Eschscholzia minutiflora in CalPhotos

Geographic subdivisions for Eschscholzia minutiflora:
se SCoRO, SNE, D
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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).


Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

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 (fruiting time in some monocot genera).