Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



David J. Keil, Family Editor and author, except as specified

Annual to tree
Leaves basal or cauline, alternate to whorled, simple to compound
Inflorescence: 1° inflorescence a head, each resembling a flower, 1–many, generally arrayed in cymes, generally subtended by ± calyx-like involucre; flowers 1–many per head
Flowers bisexual, unisexual, or sterile, ± small, of several types; calyx 0 or modified into pappus of bristles, scales, or awns, which is generally persistent in fruit; corolla radial or bilateral (rarely 0), lobes generally (0)4–5; stamens 4–5, anthers generally fused into cylinder around style, often appendaged at tips, bases, or both, filaments generally free, generally attached to corolla near throat; pistil 1, ovary inferior, 1-chambered, 1-seeded, style 1, branches 2, generally hair-tufted at tip, stigmas 2, generally on inside of style branches
Fruit: achene, cylindric to ovoid, generally deciduous with pappus attached
Genera in family: ± 1300 genera, 21,000 species (largest family of dicots): worldwide. Largest family in CA. Also see tribal key to CA genera: Strother 1997 Madroño 44(1):1–28. See glossary p. 25 for illustrations of general family characteristics.



Gregory K. Brown and David J. Keil

Shrubs < 50 dm, resinous, generally gland-dotted
Leaves < 10 cm, thread-like to wedge-shaped, entire
Inflorescence various; heads radiate or discoid; involucre 3–14 mm, obconic to hemispheric; phyllaries in 2–6 series, ± lanceolate to ovate, generally resinous, tips erect to recurved, obtuse to acuminate or tailed, midrib often thickened with a resin gland
Ray flowers 0–30; corollas 2–12 mm, generally yellow
Disk flowers 4–70+; corollas 3–11 mm, yellow
Fruit 2–8 mm, ribbed; pappus white to brown
Species in genus: ± 27 species: w North America
Reference: [Nesom 1990 Phytologia 68:144–155]
Generally flowers summer/autumn. Some species hybridize with Chrysothamnus nauseosus.


E. palmeri (A. Gray) H.M. Hall

Plant 5–40 dm, glabrous to puberulent, gland-dotted when young
Leaf < 40 mm, linear, acute
Inflorescence: heads radiate, many; involucre 5–8.5 mm, 3.5–4.5 mm diam, obconic to ± cylindric; phyllaries 16–24 in 4–5 series, < disk flowers, oblong, tips greenish, oblong or acute, margins narrow, white, ciliate
Ray flowers 1–8; corollas 4–6 mm
Disk flowers 5–20; corollas 5–8 mm
Fruit 3–4 mm, subcylindric, 4–7-angled, hairy; pappus of disk flowers > corollas, brown
Ecology: Plains, foothills
Elevation: < 800 m.
Bioregional distribution: South Coast, Channel Islands, w Sonoran Desert
Distribution outside California: n Baja California
Synonyms: Haplopappus p. A. Gray
See E. ericoides.


var. palmeri


Plant 1–4 dm, stout
Leaf 20–40 mm, often curved
Inflorescence: involucre 5–6.5 mm
Ray flowers 4–10
Chromosomes: 2n=18
Ecology: Coastal scrub
Elevation: < 600 m.
Bioregional distribution: s South Coast (s San Diego Co.)
Distribution outside California: n Baja California
Threatened by urban development.
See the CNPS Inventory for information about endangerment and rarity.
previous taxon | next taxon
bioregional map for ERICAMERIA%20palmeri%20var.%20palmeri being generated

Retrieve Jepson Interchange Index to Plant Names entry for Ericameria palmeri var. palmeri
Retrieve dichotomous key for Ericameria
Retrieve multiple-entry key (MEKA) for Ericameria
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page

University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California