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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 caudex or rhizome, fibrous-rooted. Stem: decumbent to erect, 1--12 dm. Leaf: basal and/or cauline, alternate, entire or +- serrate, basal generally petioled, cauline generally sessile. Inflorescence: heads radiate, (1 or) in flat-topped to cyme-, raceme-, or panicle-like cluster; involucre narrowly to broadly bell-shaped; phyllaries graduated in 3--7 series, free, outer widely ovate to lanceolate, inner linear, obtuse to acute, +- white at base, green in distal 1/3--3/4, green zone basally truncate, at least inner pale-papery-margined; receptacle flat to convex, glabrous, epaleate. Ray Flower: 5--60; corolla white to violet. Disk Flower: 8--260; corolla yellow, often becoming pink- or purple-tinged, tube > or < throat; anthers yellow, often becoming pink- or purple-tinged, tips oblong to +- triangular; style branches flat on inner face, base +- warty, tip +- acute, minutely hairy. Fruit: +- compressed, 7--12-ribbed, glabrous or +- hairy, +- brown; pappus of +- barbed bristles, white to +- pink, yellow or brown.
Species In Genus: 22 species: North America, Eurasia. Etymology: (Greek: eurys, wide, and baios, few, for leaves or rays of Eurybia macrophylla (L.) Cass.)
eFlora Treatment Author: Luc Brouillet
Jepson Online Interchange
Key to EurybiaPrevious taxon: Euphrosyne nevadensis
Next taxon: Eurybia integrifolia
Citation for this treatment: Luc Brouillet 2016. Eurybia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=68501, accessed on September 29, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 29, 2016.