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Vascular Plants of California
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Encelia farinosa × Encelia frutescens


Higher Taxonomy
Family: CupressaceaeView DescriptionDichotomous Key
Common Name: CYPRESS FAMILY
Habit: Shrub, tree, generally evergreen; monoecious or dioecious. Leaf: simple, cauline, alternate or opposite (either +- 4-ranked) or whorled in 3s (6-ranked), linear or scale-, awl- or needle-like (sometimes linear and awl-like on 1 pl, or on juvenile or injured plants), generally decurrent, covering young stems. Pollen Cone: axillary or terminal. Seed Cone: +- fleshy to generally woody, generally hard at maturity; scales opposite or whorled, peltate or not. Seed: 1--many per scale, angled or lateral winged, generally wind-dispersed. Chromosomes: n=11.
Genera In Family: 30 genera, 130+ species: +- worldwide, especially North America, Eurasia. Note: Incl (paraphyletic) Taxodiaceae. Taxa of (polyphyletic) Cupressus in TJM (1993) now in Callitropsis, Chamaecyparis, Hesperocyparis.
eFlora Treatment Author: Jim A. Bartel, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: EnceliaView DescriptionDichotomous Key


Habit: [Subshrub], shrub. Stem: generally many from base. Leaf: alternate, generally drought-deciduous, simple, petioled, entire or rarely toothed. Inflorescence: heads radiate or discoid, 1 or in panicle-like cluster; peduncle generally long; involucre hemispheric; phyllaries graduated in 2--4+ series, free; receptacle paleate, palea folded around and falling with fruit. Ray Flower: sterile; style 0; ray yellow. Disk Flower: many; corolla yellow or brown-purple, tube slender, throat abruptly expanded, lobes triangular; anther tip ovate, +- acute; style tips triangular. Fruit: strongly compressed, obovate or wedge-shaped; edges long-ciliate; faces glabrous or short-hairy; pappus of 2 narrow scales or 0.
Species In Genus: 11--12 species: western North America, western South America. Etymology: (Christoph Entzelt, German naturalist, 1517--1583) Note: Commonly hybridizing, especially in disturbed areas; Encelia farinosa × Encelia frutescens is common; Encelia farinosa × Encelia californica, Encelia farinosa × Encelia actoni, Encelia actoni × Encelia frutescens, Encelia frutescens × Encelia virginensis, Encelia farinosa × Geraea canescens have been reported.
eFlora Treatment Author: David J. Keil & Curtis Clark
Reference: Clark 2006 FNANM 21:118--122; Fehlberg & Ranker 2007 Syst Bot 32:692--699
Encelia farinosa × Encelia frutescens
SPONTANEOUS HYBRID
Habit: Shrub 5--12 dm with few to many branches from 1--several short trunks. Stem: branched along its length; young stem hairy; older with rough bark. Leaf: scattered along stem; petiole 5--15 mm; blade 1--5 cm, elliptic, lanceolate, or narrowly ovate, obtuse, gray-green, lightly tomentose with some strigose hairs. Inflorescence: heads radiate or sometimes discoid, 2--5 in loose panicle-like cluster; peduncles glabrous or strigose; involucre 5--12 mm; phyllaries lanceolate. Ray Flower: 1--11; ray 5--20 mm, deeply 3-lobed. Disk Flower: corolla 5--6 mm, yellow. Fruit: 5--8 mm; pappus 2 slender scales or 0. Chromosomes: 2n=36.
Ecology: Roadsides, disturbed places, desert washes, flats; Elevation: < 800 m. Bioregional Distribution: D; Distribution Outside California: western Arizona, northern Baja California. Flowering Time: Feb--May Note: Hybrids and backcrosses commonly found with parent species. Often misidentified as Encelia virginensis.
Synonyms: Encelia farinosa var. phenicodonta (S.F. Blake) I.M. Johnst.
Jepson eFlora Author: David J. Keil & Curtis Clark
Reference: Clark 2006 FNANM 21:118--122; Fehlberg & Ranker 2007 Syst Bot 32:692--699
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: David J. Keil & Curtis Clark 2012, Encelia farinosa × Encelia frutescens, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=100435, accessed on March 09, 2021.

Citation for the whole project: Jepson Flora Project (eds.) 2021, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on March 09, 2021.

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Geographic subdivisions for Encelia farinosa × Encelia frutescens:
D
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).