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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
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.Key to Romneya
2 species: California, Baja California. (T. Romney Robinson, Irish astronomer, 1792–1882)
Fruit: 2.5–3.5 cm. Seed: smooth, ± light brown.
Dry washes, canyons; < 1500 m. w South Coast, Western Transverse Ranges, Peninsular Ranges; northern Baja California. Incl in Romneya coulteri by some. Apr–Jun [Online Interchange]
Previous taxon: Romneya coulteri
Next taxon: Parnassiaceae
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 2 2015
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=41558, accessed on Mar 2 2015
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© 2003 Lynn Watson
|Geographic subdivisions indicated for the distribution of Romneya trichocalyx|| 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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(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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