Jepson eFlora: Taxon page
Key to families | Table of families and genera
Previous taxon Index to 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 |
Next taxon
Baileya multiradiata

Higher Taxonomy
Family: Asteraceae (Compositae)View DescriptionDichotomous Key

Common Name: SUNFLOWER FAMILY
Habit: 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 (involucre 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.
Genera In Family: +- 1500 genera, 23000 species: worldwide, many habitats. Note: 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.
Unabridged Note: Largest family of vascular plants in California and of eudicots globally.
eFlora Treatment Author: David J. Keil, except as noted
Scientific Editor: David J. Keil, Bruce G. Baldwin.
Genus: BaileyaView DescriptionDichotomous Key

Common Name: DESERT-MARIGOLD
Habit: Annual, perennial herb, +- tomentose throughout. Stem: 1--many from base. Leaf: simple, basal and alternate, entire to deeply lobed, +- reduced upward, petioled or distal sessile, tomentose and glandular. Inflorescence: heads radiate, 1 or in loose cyme-like clusters; peduncles short to very long; involucre cylindric to bell-shaped or hemispheric; phyllaries in 1--2 +- equal series, lance-linear; receptacle flat to slightly rounded, pitted, epaleate or with scattered, narrow paleae. Ray Flower: 4--many; ray ovate, +- 3-lobed, sessile on ovary, yellow, drying cream, papery, reflexed and persistent on fruit when dry. Disk Flower: 8--many; corolla yellow, gland-dotted, lobes triangular, long-hairy; anther tips triangular; style tips truncate or short-triangular. Fruit: linear to club-shaped, cylindric or +- angled, short-rough-hairy and gland-dotted to glabrous; pappus 0.
Species In Genus: 3 species: southwestern United States, Mexico. Etymology: (J.W. Bailey, American microscopist, 1811--1857)

Baileya multiradiata Torr.
NATIVE
Habit: Plant canescent-tomentose. Stem: 2--5 dm, generally branched only at base. Leaf: mostly basal and proximal cauline, these 2--10 cm; petioles winged; blades 1--3-pinnately divided, lobes linear to ovate; distal cauline 0 or reduced to linear, entire bracts. Inflorescence: heads 1, showy; peduncle generally 1--3 dm, +- naked, scape-like; involucre 10--25 mm diam, hemispheric; phyllaries 5--8 mm. Ray Flower: 34--60 in > 1 series; ray 10--20 mm, widely linear or oblong, bright yellow; lobes prominent, lanceolate to ovate. Disk Flower: many; corolla 3--4 mm. Fruit: 2.5--4 mm, cylindric or slightly angled, +- equally ribbed. Chromosomes: 2n=32.
Ecology: Desert roadsides, flats, washes, hillsides; Elevation: < 1600 m. Bioregional Distribution: SCoRO (waif), D; Distribution Outside California: to Utah, Texas, northern Mexico. Flowering Time: Apr--Jul, Oct Note: Plants from northeastern DSon apparently native; southwestern DSon records probably naturalized.
Synonyms: Baileya multiradiata Harv. & A. Gray ex Torr. var. multiradiata
Unabridged Note: Sometimes cultivated, may be included in desert wildflower seed mixes. May escape or locally naturalize outside native range. Plants from northeastern DSon apparently native; southwestern DSon records probably naturalized. Origin of plants from vicinity of Edwards Air Force Base (DMoj) uncertain. Expanded author citation: Baileya multiradiata Harv. & A. Gray ex Torr.
eFlora Treatment Author: David J. Keil
Jepson Online Interchange

Previous taxon: Baileya
Next taxon: Baileya pauciradiata

Name Search
botanical illustration including Baileya multiradiata

Contact/Feedback

Citation for this treatment: David J. Keil 2016. Baileya multiradiata, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=1622, accessed on February 07, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 07, 2016.


Baileya multiradiata
click for enlargement
© 2010 Barry Breckling
Baileya multiradiata
click for enlargement
© 2010 Barry Breckling
Baileya multiradiata
click for enlargement
© 2010 Neal Kramer
Baileya multiradiata
click for enlargement
© 2004 James M. Andre
Baileya multiradiata
click for enlargement
© 2010 Neal Kramer
Baileya multiradiata
click for enlargement
© 2003 Michael Charters

More photos of Baileya multiradiata in CalPhotos


Geographic subdivisions for Baileya multiradiata:
SCoRO (waif), D;
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
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.