|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Asteraceae (Compositae)||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Perennial herb from stout taproot and caudex. Stem: generally +- erect, branched basally or distally. Leaf: basal and cauline, alternate, basal largest, present on flowering stems or 0, lance-linear to broadly ovate, cauline often sessile, distal reduced. Inflorescence: heads generally radiate, 1--few, +- large; involucre hemispheric or bell-shaped; phyllaries +- many in 2--3 series, outer often +- leaf-like; receptacle +- convex, paleate; paleae +- linear, entire, generally +- hairy. Ray Flower: 0 or (1)5--25; ray generally yellow. Disk Flower: 35--150+; corolla yellow or orange, lobes short; anthers brown or yellow, tips triangular; style tips linear, tapered. Fruit: pappus 0, of 1--several triangular or lanceolate scales, or a low crown; ray fruit 3-angled; disk fruit 4-angled, sometimes +- compressed.
Species In Genus: 10 species: western North America. Etymology: (Nathaniel J. Wyeth, American explorer, 1802--1856) Note: Some species sometimes treated in Agnorhiza.
eFlora Treatment Author: David J. Keil
Jepson Online Interchange
Key to WyethiaPrevious taxon: Volutaria muricata
Next taxon: Wyethia angustifolia
Citation for this treatment: David J. Keil 2016. Wyethia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=659, accessed on September 26, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 26, 2016.