|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 tree. Leaf: basal and/or cauline, alternate, opposite, rarely whorled, simple to 2+ × compound. Inflorescence: 1° inflorescence a head, resembling a flower, of several types (see below), 1–many in generally ± cyme-like cluster; each head generally with ± calyx-like involucre of 1–many series of phyllaries (involucral bracts); receptacle of head flat to conic or columnar, paleate (bearing paleae = receptacle bracts) or epaleate; flowers 1–many per head. Flower: bisexual, unisexual, or sterile, ± small, of several types (see below); calyx 0 or modified into ± persistent pappus of bristles, scales, and/or awns; corolla radial or bilateral (0), lobes generally (0)3–5; stamens 4–5, filaments generally free, generally fused to corolla at tube/throat junction, anthers generally fused into cylinder around style, anther base generally rounded or cordate (deeply sagittate or with tail-like appendages), tip (= flattened appendage) generally projecting beyond pollen sac; pistil 1, 2-carpeled, ovary inferior, 1-chambered, 1-seeded, placenta basal, style 1, tip generally ± 2-branched (except in some staminate disk flowers), branch tips truncate or generally bearing ± brush-like appendages; stigmas 2, generally on adaxial faces of style branches. Fruit: achene (also called a cypsela) (drupe in Chrysanthemoides), cylindric to ovoid, sometimes compressed, generally deciduous with pappus attached.
± 1500 genera, 23000 species: worldwide, many habitats. Flower and head types differ in form and sexual condition. A disk flower has a generally radial corolla, with a cylindric tube, expanded throat, and generally 5 lobes. Disk flowers are generally bisexual and fertile but occasionally staminate with reduced ovaries. Discoid heads comprise only disk flowers. A radiant head is a variant of a discoid head, with peripheral disk flower corollas expanded, often bilateral. A ray flower corolla is bilateral, generally with a slender tube and flattened petal-like ray (single lip composed of generally 3 lobes). Ray flowers are generally pistillate or sterile (occasionally lacking styles). Radiate heads have peripheral ray flowers and central disk flowers. Disciform heads superficially resemble discoid heads, with pistillate or sterile flowers that lack rays, together with or separate from disk flowers. A ligulate flower is bisexual, with a bilateral, generally ephemeral corolla and 5-lobed ligule. Liguliflorous heads comprise only ligulate flowers. See glossary p. 31 for illustrations of family characteristics. Echinops sphaerocephalus L., Gaillardia aristata Pursh, Gaillardia pulchella Foug., Hymenothrix loomisii S.F. Blake, Tagetes erecta L., Thelesperma megapotamicum (Spreng.) Kuntze are waifs. Melampodium perfoliatum Kunth, historic urban waif. Ageratum conyzoides L., Guizotia abyssinica (L. f.) Cass., Santolina chamaecyparisus L., orth. var. are rare or uncommon escapes from cultivation. Dyssodia papposa, Ismelia carinata (Schousb.) Sch. Bip. [Chrysanthemum carinatum Schousb.], Mantisalca salmantica (L.) Briq. & Cavill. are historical or extirpated waifs in California. Inula helenium L. not documented in California. Taxa of Aster in TJM (1993) treated here in Almutaster, Eucephalus, Eurybia, Ionactis, Oreostemma, Sericocarpus, Symphyotrichum; Chamomilla in Matricaria; Cnicus in Centaurea; Conyza in Erigeron and Laennecia; Dugaldia in Hymenoxys; Erechtites in Senecio; Hymenoclea in Ambrosia; Lembertia in Monolopia; Osteospermum ecklonis in Dimorphotheca; Picris echioides in Helminthotheca; Prionopsis in Grindelia; Raillardiopsis in Anisocarpus and Carlquistia; Schkuhria multiflora in Bahia; Trimorpha in Erigeron; Venidium in Arctotis; Whitneya in Arnica. Taxa of Arida in TJM2 (2012) treated here in Leucosyris. —Scientific Editors: David J. Keil, Bruce G. Baldwin.
Unabridged note: Largest family of vascular plants in California and of eudicots globally.
Key to Asteraceae
Perennial herb from woody base, shrub, dioecious, glabrous or finely hairy, often glandular and sticky or shiny. Stem: generally erect or ascending, round or often striate-angled, generally green. Leaf: cauline, alternate, sessile to short-petioled, linear to (ob)ovate, entire or toothed, distally occasionally reduced to bracts. Inflorescence: heads of 2 kinds, unisexual; discoid (staminate) and disciform (pistillate), 1 or in terminal or lateral raceme- or panicle-like or ± flat-topped clusters; phyllaries lanceolate to ovate, graduated in several series; receptacle flat to conic, epaleate, smooth or pitted. Pistillate flower: 8–150; corolla narrowly tubular, ± white, lobes vestigial; style branches linear, ± glabrous. Staminate flower: 8–48; corolla white to pale yellow, 5-lobed; anther tip oblong-triangular; style tips erect, club-shaped or oblong to linear, densely papillate to minutely bristly, ovary much reduced; pappus of many equal bristles. Fruit: ± cylindric, 5–10-ribbed; pappus of many bristles, generally elongating and exceeding phyllaries in fruit, ± white to tawny.Key to Baccharis
350–450 species: America. (Latin: Bacchus, god of wine) [Sundberg & Bogler 2006 FNANM 20:23–34]
Unabridged references: [Müller 2006 Syst Bot Mono 76]
Perennial herb < 2 m, from rhizome, glabrous, sticky. Stem: generally 1 from base; simple, mostly unbranched, erect or ascending, resin-gland-dotted, sticky. Leaf: present at flower, short-petioled; blade < 130 mm, 8–30 mm wide, lanceolate, entire or finely serrate, gland-dotted; main veins 3. Inflorescence: heads in rounded to ± flat-topped cluster; involucre hemispheric; phyllaries linear to lanceolate, 2–4 mm, narrow, acuminate, glabrous, generally resin-gland-dotted and sticky. Pistillate flower: 80–150; corolla 1.7–3 mm. Staminate flower: 26–40; corolla 3.5–4 mm; pappus 3–4(5) mm. Fruit: 0.6–1.5 mm, ± glandular, tip hairy; ribs 5; pappus 2.5–4(7) mm.
2n=18. Coastal freshwater and saltwater marshes, streambanks; < 1200 m. North Coast, w Klamath Ranges, Outer North Coast Ranges, Cascade Range Foothills, Sierra Nevada Foothills, Great Central Valley, Central Western California, Southwestern California; Oregon, Baja California, South America. [Baccharis douglasii DC.] [Müller 2006 Syst Bot Monogr 76:1–341] The name Baccharis glutinosa was mistakenly treated as a synonym of, rather than as a name that had been misapplied to, Baccharis salicifolia in TJM (1993) and elsewhere previously. Jul–Oct [Online Interchange]
Previous taxon: Baccharis brachyphylla
Next taxon: Baccharis malibuensis
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 18 2015
Citation for this treatment: [Author of taxon treatment] 2013. Baccharis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=1607, accessed on Apr 18 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 Baccharis glutinosa|| 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