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|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: Annual to perennial herb (subshrub). Stem: generally erect. Leaf: alternate, generally sessile, generally entire (toothed or lobed to ternately dissected). Inflorescence: heads generally radiate (discoid, disciform), 1--few (many), peduncled; inflorescence generally +- flat-topped (raceme- to panicle-like); involucre urn- to bell-shaped or generally hemispheric; phyllaries linear to narrowly lanceolate, in 2--several series, +- equal to strongly graduated, generally ascending or erect in flower, generally green, spreading when pressed, reflexed when dry; receptacle flat to steeply conic, smooth to shallowly pitted, epaleate. Ray Or Pistillate Flower: (0)10--generally many; ray generally narrow, generally white or pink to lavender or blue-purple (yellow), generally spreading when fresh, often coiled or reflexed when dry. Pistillate Flower: (0)10--generally many; ray generally narrow, generally white or pink to lavender or blue-purple (yellow), generally spreading when fresh, often coiled or reflexed when dry. Disk Flower: generally many; corolla generally narrowly funnel-shaped, yellow; anther tip +- lanceolate; style tips 0.1--0.8 mm, +- triangular. Fruit: generally 0.5--3 mm, generally +- oblong, compressed to +- cylindric, generally 2-ribbed, generally sparsely hairy; pappus (0) generally double, outer of short bristles, narrow scales, or a short crown, inner of 6--50 long bristles.
Species In Genus: +- 375 species: worldwide. Etymology: (Greek: early old age) Note: Erigeron concinnus (Hook. & Arn.) Torr. & A. Gray var. condensatus D.C. Eaton, Erigeron disparipilus Cronquist, and Erigeron lobata A. Nelson apparently not in California.
eFlora Treatment Author: David J. Keil & Guy L. Nesom
Jepson Online Interchange
Key to ErigeronPrevious taxon: Ericameria teretifolia
Next taxon: Erigeron aequifolius
Citation for this treatment: David J. Keil & Guy L. Nesom 2016. Erigeron, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=429, accessed on May 01, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 01, 2016.