|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: Annual to subshrub. Stem: 1--several from taproot or +- branched caudex, generally branched distally and +- bushy. Leaf: alternate, entire to irregularly serrate or dentate, proximal tapered at base; teeth generally bristle-tipped. Inflorescence: heads generally radiate, in cyme-like clusters; involucre bell-shaped, hemispheric, or obconic; phyllaries in 3--12 series of unequal length, proximally straw-colored, distally green; receptacle convex, with short, triangular scales, glabrous, epaleate. Ray Flower: (0)7--many; corolla white, blue, or purple. Disk Flower: 15--generally many; corolla 5.5--8 mm, yellow; anther tip lanceolate; style tips lanceolate. Fruit: 2.5--3.5 mm, generally narrowly obovate, weakly curved and +- flattened, smooth or generally with 5--7 ribs on each face, glabrous or +- silky; pappus 6--8 mm, of many unequal bristles.
Species In Genus: 3 species: temperate western North America. Etymology: (Greek: biennial, from duration of type sp.)
eFlora Treatment Author: David R. Morgan
Jepson Online Interchange
Key to DieteriaPrevious taxon: Dicoria canescens
Next taxon: Dieteria asteroides
Citation for this treatment: David R. Morgan 2017. Dieteria, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=68393, accessed on February 25, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 25, 2017.