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Key to families | Table of families and genera
Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Annual, perennial herb. Leaf: basal and cauline, alternate, proximal often petioled, distal sessile; blade entire, toothed, or pinnately lobed. Inflorescence: heads radiate or discoid, 1 or in leafy cyme; peduncle slender, bracts generally 0 or few; involucre hemispheric; phyllaries in 2–3 series, generally reflexed in fruit; receptacle rounded to spheric, ± pitted, epaleate but with stiff awn-like projections. Ray flower:  few to many, pistillate or sterile; rays showy, yellow to red or purple, often multicolored, generally deeply 3-lobed. Disk flower: many; corolla yellow to red or purple, generally long-hairy; anther tip narrowly triangular; style tips awl-like, bristly. Fruit: obpyramidal, generally hairy; pappus of 5–10 scales, often awn-tipped.
± 28 species: North America, South America. (Gaillard de Charentonneau, 18th century French botanist) [Strother 2006 FNANM 21:421–426] Several species and hybrids common in cultivation, occasionally escaped in California but probably not established.
1. Perennial herb; rays wholly yellow or base purple ..... [G. aristata]
1' Annual; rays variously colored, wholly red or purple, red or purple with yellow tips, or multicolored ..... [G. pulchella]
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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