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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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ASTERACEAE

SUNFLOWER FAMILY

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.

ERIOPHYLLUM

WOOLLY SUNFLOWER

John S. Mooring and Dale E. Johnson

Annual to shrubs, ± woolly
Leaves generally alternate, entire to nearly compound
Inflorescence: heads 1–many, 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)10–300; corolla yellow; anther tips ovate, deltate or awl-shaped
Fruit 4-angled or flattened in outer flowers, generally club-shaped in inner flowers; pappus 0–15 ± jagged or fringed scales
Species in genus: 14 species: w North America
Etymology: (Greek: woolly leaf)
Reference: [Mooring 1991 Madroño 38:213–226]
Annual species by Dale E. Johnson.

Native

E. lanatum (Pursh) J. Forbes

Generally ± subshrub 1–10 dm
Leaf 1–8 cm, linear to ovate, entire to ± 2-pinnately compound, generally becoming glabrous above
Inflorescence: heads 1–5+; peduncles 3–30 cm; involucres 5–12 mm, bell-shaped to hemispheric; phyllaries 5–15; receptacle ± flat to ± conic
Ray flowers (0) generally 8–13; ligules 6–20 mm, oblong to elliptic
Disk flowers 20–300; corollas 2.5–5 mm, tube generally glandular
Fruit generally variable, 2–5 mm, glandular or hairy; pappus scales 0 or 6–12, 0–2 mm, translucent
Ecology: Many (generally dry) habitats
Elevation: < 4000 m.
Bioregional distribution: Northwestern California, Cascade Range, Sierra Nevada (except s Sierra Nevada Foothills), Sacramento Valley, Central Western California (except Inner South Coast Ranges), Modoc Plateau
Distribution outside California: to British Columbia, Montana, Wyoming, Nevada
Polyploid pillar complex of intergrading races; key is to modal populations; some vars. hybridize with E. confertiflorum.

Native

var. hallii Constance

FORT TEJON WOOLLY SUNFLOWER


Leaf 2.5–5 cm, generally opposite below, ovate, thin, pinnately lobed
Inflorescence: peduncles 5–12 cm; involucres 8–10 mm
Ray flowers 8–9; ligules 10–13 mm
Disk flowers: corollas 4–5 mm, tube glabrous
Fruit 4–5 mm
Chromosomes: 2n=16
Ecology: Dry sites
Elevation: 1200–1500 m.
Bioregional distribution: s Tehachapi Mountain Area (near Fort Tejon), se Outer South Coast Ranges (Sierra Madre Mtns).Threatened by grazing.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for ERIOPHYLLUM%20lanatum%20var.%20hallii being generated
 
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Retrieve Jepson Interchange Index to Plant Names entry for Eriophyllum lanatum var. hallii
Retrieve dichotomous key for Eriophyllum
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