|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Annual to tree
Leaves basal or cauline, alternate to whorled, simple to compound
Inflorescence: 1° inflorescence a head, each resembling a flower, 1many, generally arrayed in cymes, generally subtended by ± calyx-like involucre; flowers 1many 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)45; stamens 45, 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):128. See glossary p. 25 for illustrations of general family characteristics.
Annual to shrubs, ± woolly
Leaves generally alternate, entire to nearly compound
Inflorescence: heads 1many, generally radiate; cluster often ± flat-topped; involucre obconic to hemispheric; phyllaries in 1 series, free or ± fused; receptacle flat to columnar, generally naked
Ray flowers generally ± 1 per phyllary; ligules entire to lobed, generally yellow (white)
Disk flowers (3)10300; corolla yellow; anther tips ovate, deltate or awl-shaped
Fruit 4-angled or flattened in outer flowers, generally club-shaped in inner flowers; pappus 015 ± jagged or fringed scales
Species in genus: 14 species: w North America
Etymology: (Greek: woolly leaf)
Reference: [Mooring 1991 Madroño 38:213226]
Annual species by Dale E. Johnson.
Subshrub or shrub generally 27 dm
Leaf 15 cm, ± obovate, deeply 35-lobed to nearly 2-pinnately compound, rolled under, becoming ± glabrous above
Inflorescence: heads 330+; peduncles 025 cm; involucres 37 mm, bell-shaped, tomentose; phyllaries 47, obtuse, keeled, strongly overlapping, ± free; receptacle ± convex
Ray flowers (0)46; ligules 25 mm
Disk flowers 1075; corollas 24 mm, puberulent to glandular
Fruit 24 mm; pappus generally < 1 mm
Ecology: Many dry habitats
Elevation: < 3000 m.
Bioregional distribution: North Coast Ranges, Sierra Nevada, Central Western California, Southwestern California, w edge Desert
Distribution outside California: Baja California
Highly variable, intergrading complex.
Hybridizes with E. lanatum.
Plant sometimes becoming glabrousSee the CNPS Inventory for information about endangerment and rarity.
Inflorescence: heads 310; clusters generally loose; peduncles 025 mm; involucres 57 mm
Disk flowers 3575; corollas 3.54 mm
Fruit 3.54 mm; pappus scales ± 8, unequal
Ecology: Oak woodland
Elevation: 600800 m.
Bioregional distribution: c Sierra Nevada Foothills.Possible hybrid derivative of var. c. X E. lanatum
Horticultural information: TRY.