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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

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.

ERICAMERIA

GOLDENBUSH

Gregory K. Brown and David J. Keil

Shrubs < 50 dm, resinous, generally gland-dotted
Leaves < 10 cm, thread-like to wedge-shaped, entire
Inflorescence various; heads radiate or discoid; involucre 3–14 mm, obconic to hemispheric; phyllaries in 2–6 series, ± lanceolate to ovate, generally resinous, tips erect to recurved, obtuse to acuminate or tailed, midrib often thickened with a resin gland
Ray flowers 0–30; corollas 2–12 mm, generally yellow
Disk flowers 4–70+; corollas 3–11 mm, yellow
Fruit 2–8 mm, ribbed; pappus white to brown
Species in genus: ± 27 species: w North America
Reference: [Nesom 1990 Phytologia 68:144–155]
Generally flowers summer/autumn. Some species hybridize with Chrysothamnus nauseosus.

Native

E. discoidea (Nutt.) G.L. Nesom

Plant 1–4 dm
Stem densely white-tomentose
Leaf 10–30 mm, oblong to oblanceolate, sessile, obtuse to acute, stalked-glandular
Inflorescence: heads discoid, 1–few in terminal clusters; involucre 9–13 mm, 8–12 mm diam, obconic to bell-shaped; phyllaries in 2–3 series, lanceolate, acuminate, scarious, grading into upper leaves
Disk flowers 10–26; corollas 9–11 mm
Fruit 5–6 mm, narrowly obconic, hairy; pappus brownish
Chromosomes: 2n=18
Ecology: Rocky slopes
Elevation: 2700–3700 m.
Bioregional distribution: High Sierra Nevada, Warner Mountains, n East of Sierra Nevada (Sweetwater Mtns)
Distribution outside California: to Oregon, Idaho, Wyoming, Colorado, Utah
Flowering time: Jul–Sep
Synonyms: Haplopappus macronema A. Gray
Stabilized hybrids with Chrysothamnus nauseosus subsp. albicaulis have been called C. parryi (A. Gray) Greene subsp. bolanderi (A. Gray) H.M. Hall & Clem.

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