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Key to families | Table of families and genera
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|Family: Asteraceae (Compositae)||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Annual to subshrub, glabrous or hairy; sap milky. Stem: 1--5+, ascending or erect, simple or branched, 1--20 dm. Leaf: alternate, basal rosette and cauline, generally +- thin, linear to oblanceolate, entire to pinnately lobed, generally withered at flower in annual and some perennial herb; distal cauline generally reduced and +- bract-like. Inflorescence: heads liguliflorous, 1 or in dense or panicle-like clusters from nodes along branches, +- sessile to peduncled; involucre cylindric; phyllaries generally in 2 series, outer < 1/4--1/2 × inner; appressed or reflexed; inner equal, glabrous or glandular-hairy; receptacle smooth or pitted, epaleate. Flower: 4--21; ligules lavender, pink, or white, readily withering. Fruit: 1.9--6.5 mm; +- cylindric, 5-angled, each face generally with long, narrow, central groove; pappus of 5--40, white to tan bristles, wholly plumose or plumose at least on distal 1/2, free throughout or widened at bases and then basally fused, generally in groups of 2--4, deciduous entirely or only widened bristle bases persistent after distal portion breaks off.
Species In Genus: 16 species: western North America. Etymology: (Greek: wreath division, alluding to plumose pappus bristles) Note: Annual species complexly interrelated, distinguished by different combinations or expressions of same traits; mature fruits and pappus needed for identification. Stephanomeria blairii moved to Munzothamnus, Stephanomeria spinosa to Pleiacanthus.
eFlora Treatment Author: L.D. Gottlieb
Jepson Online Interchange
Key to StephanomeriaPrevious taxon: Stenotus lanuginosus var. lanuginosus
Next taxon: Stephanomeria cichoriacea
Citation for this treatment: L.D. Gottlieb 2016. Stephanomeria, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=619, accessed on August 28, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on August 28, 2016.