Directory       News       Site Map       Home
    Jepson eFlora: Taxon page
Key to families | Table of families and genera

Previous taxon 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 |
Previous taxon


Warren L. Wagner & Peter C. Hoch, family description, key to genera; treatment of genera by Warren L. Wagner, except as noted

Annual to perennial herb (to tree). Leaf: cauline or basal, alternate, opposite, or whorled, generally simple and toothed (to pinnately compound); stipules 0 or generally deciduous. Inflorescence: spike, raceme, panicle, or flowers 1 in axils; bracted. Flower: generally bisexual, generally radial, often opening at either dawn or dusk; hypanthium generally prolonged beyond ovary (measured from ovary tip to sepal base); sepals 4(2–7); petals 4(2–7, rarely 0), often fading darker; stamens 2 × or = sepals in number, anthers 2-chambered, opening lengthwise, pollen interconnected by threads; ovary inferior, chambers generally as many as sepals (sometimes becoming 1), placentas axile or parietal, ovules 1–many per chamber, style 1, stigma 4-lobed (or lobes as many as sepals), club-shaped, spheric, or hemispheric. Fruit: capsule, loculicidal (sometimes berry or indehiscent and nut-like). Seed: sometimes winged or hair-tufted.
22 genera, ± 657 species: worldwide, especially western North America; many cultivated (Clarkia, Epilobium, Fuchsia, Oenothera). [Wagner et al. 2007 Syst Bot Monogr 83:1–240] Gaura moved to Oenothera. Fuchsia magellanica Lam. naturalized in northern California. —Scientific Editors: Robert Patterson, Bruce G. Baldwin.
Unabridged references: [Munz 1965 North America Fl II 5:1–278]

Key to Onagraceae

Annual to subshrub, from taproot; stem often thick and fleshy. Leaf: basal and/or cauline, alternate, simple, narrowly elliptic to narrowly lanceolate, pinnately lobed to occasionally entire. Inflorescence: loose wand-like spike. Flower: opening at dawn; hypanthium short, ± with a lobed, red-brown, fleshy disk within; sepals 4, reflexed (occasionally 2–3 remaining adherent); petals 4, yellow, finely flecked with red near base, this area not ultraviolet reflective, remainder of petals strongly so, fading orange-red; longer stamens opposite sepals, anthers attached at middle, pollen grains 3-angled; stigma ± hemispheric or cylindric, generally > anthers and cross-pollinated, or ± = anthers and self-pollinated. Fruit: straight to curved, sessile. Seed: in 1 row per chamber, narrowly obovoid, finely papillate, generally purple-spotted.
4 species: 3 in Baja California, 1 from west-central California to western and southern Arizona, northwestern Mexico. (Greek: well lobed) [Wagner et al. 2007 Syst Bot Monogr 83:1–240] Incl in Camissonia in TJM (1993).
Unabridged references: [Raven 1969 Contr US Natl Herb 37:161–396]

E. californicus Torr. & A. Gray
Annual, ± glabrous or leaves minutely strigose, inflorescence sparsely glandular-hairy; rosette well developed. Stem: erect, straight, 2–180 cm, slender, ± glaucous or green. Leaf: < 30 cm, narrowly elliptic, irregularly and sharply pinnately lobed, much reduced distally on stem. Inflorescence: flowers widely spaced. Flower: hypanthium 0.6–1.5 mm; sepals 3.9–8 mm; petals 6–14 mm. Fruit: reflexed, 45–110 mm, cylindric early, drying 4-angled, ± straight. Seed: 1.3–1.6 mm, olive-green, purple-spotted.
2n=14,28. Open places in coastal-sage scrub, chaparral, desert scrub; < 1300 m. Outer North Coast Ranges (Sonoma Co.), San Joaquin Valley (Fresno Co.), South Coast Ranges, Southwestern California, Desert; southern and western Arizona, northwestern Mexico. [Camissonia californica (Nutt. ex Torr. & A. Gray) P.H. Raven; Oenothera leptocarpa Greene] Self-pollinated. Apr–Jun [Online Interchange]
Unabridged note: Expanded author citation: Eulobus californicus Nutt. ex Torr. & A. Gray

Previous taxon: Eulobus
Next taxon: Gayophytum


Name search

Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 25 2015
Citation for this treatment: [Author of taxon treatment] 2013. Eulobus, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 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.

Geographic subdivisions indicated for the distribution of Eulobus 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.
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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records


CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.