|University of California, Berkeley|
|Directory News Site Map Home|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
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
1 sp. (Greek: wide stamen)
Annual 3–30 cm, shaggy-hairy; sap colorless to orange. Leaf: basal and cauline, alternate and whorled, 1–9 cm, linear to lanceolate or narrowly oblong, entire. Inflorescence: axillary and terminal, 1-flowered; peduncle 3.4–26 cm, > leaves. Flower: buds nodding; sepals 3, hairy; petals 6, free, 6–19 mm, narrowly ovate to obovate, cream with yellow base, tip, or both (or all yellow), often persistent after flower; stamens > 12, free, filaments flat; carpels generally 9–18, fused, glabrous to densely long-hairy, separating in fruit. Fruit: 10–16 mm, ovoid to widely linear, generally narrowed between seeds, breaking transversely into 1-seeded, indehiscent units. Seed: 1 mm, elliptic to reniform, smooth, black.
Open grassland, sandy soil, burns; < 1000 m. California Floristic Province, w Desert; to Oregon, Utah, Arizona, Baja California. Highly variable; further study needed to determine if plants of southern Channel Islands (Santa Barbara Island), described as Platystemon californicus var. ciliatus Dunkle, Santa Barbara Island cream cups, deserve taxonomic recognition. Mar–May [Online Interchange]
Previous taxon: Platystemon
Next taxon: Romneya
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 25 2015
Citation for this treatment: [Author of taxon treatment] 2013. Platystemon, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=38664, accessed on May 25 2015
Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.
See CalPhotos for additional images
Jo-Ann Ordano © 2000 California Academy of Sciences
|Geographic subdivisions indicated for the distribution of Platystemon californicus|| 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.
READ ABOUT YELLOW FLAGS
(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).
View elevation by latitude chart
| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records
CCH collections by month