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PAPAVERACEAE POPPY FAMILY

Gary L. Hannan & Curtis Clark, except as noted

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.
25–30 genera, 200 species: northern temperate, northern tropics; some cultivated (Papaver, Eschscholzia, Hunnemannia), source of opiates. 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. —Scientific Editor: Thomas J. Rosatti.

Key to Papaveraceae

ROMNEYA MATILIJA POPPY
Subshrub or shrub, 100–250 cm; sap colorless; rhizomes creeping. Leaf: cauline, gray-green-glaucous; lobes 3–5, deep, lanceolate to ovate. Inflorescence: terminal, 1-flowered. Flower: buds erect; sepals 3; petals 6, free, obovate, crinkled, white, shed after flower; stamens many, free; ovary chambers 1–12, style 0, stigma lobes 7–12, flat. Fruit: oblong to ovate, dehiscent from tip, bristly. Seed: many, 1.3–1.5 mm, ovate.
2 species: California, Baja California. (T. Romney Robinson, Irish astronomer, 1792–1882)

Key to Romneya

R. coulteri Harv. COULTER'S MATILIJA POPPY
NATIVE
Fruit: 3–4 cm. Seed: papillate, dark brown.
Dry washes, canyons; < 1200 m. South Coast, w Western Transverse Ranges, Peninsular Ranges. Largest flowers of any plant native to California. Mar–Jul [Online Interchange] {CNPS list}

Previous taxon: Romneya
Next taxon: Romneya trichocalyx

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 25 2014
Citation for this treatment: [Author of taxon treatment] 2013. Romneya, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=41557, accessed on Oct 25 2014

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click for enlargement Romneya coulteri
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© 1995 Saint Mary's College of California

Geographic subdivisions indicated for the distribution of Romneya coulteri Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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).

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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.