Washington Flora Checklist
A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium


Checklist » Convolvulaceae
Convolvulaceae   (Morning-Glory Family)

Notes: Cusctaceae is a monophyletic clade within Convolvulaceae, and for this reason has been subsumed within the latter family.

There is no consensus among regional floristic resources on the treatment of Calystegia and Convolvulus as distinct genera. Morphological differences distinguishing the genera have included stigmatic lobe shape (linear and acute-tipped in Convolvulus; oblong and blunt-tipped, flat in Calystegia) and number of capsular locules (one in Calystegia, two in Convolvulus). Recent molecular studies indicate that Calystegia is nested within Convolvulus (Stefanovic, Krueger, and Olmstead, 2002). Recognition of Calystegia at the rank of genus makes Convolvulus paraphyletic, a situation that is avoided here.

Family Synonyms:
» Cuscutaceae (Dodder Family)

» Stefanović, S., L. Krueger, and R. G. Olmstead. 2002. Monophyly of the Convolvulaceae and circumscription of their major lineages based on DNA sequences of multiple chloroplast loci. American Journal of Botany 89:1510–1522.
» Stefanović, S., D.F. Austin and R.G. Olmstead. 2003. Classification of Convolvulaceae: A Phylogenetic Approach. Systematic Botany 28(4): 791-806.

Family treatment authored by Fred Weinmann, David Giblin; last updated 2/8/2010 by David Giblin
Taxon (native species in boldface) # Synonyms Common Names
Calystegia atriplicifolia Hallier f. ssp. atriplicifolia    [KZ99] 1 night-blooming morning-glory
Convolvulus arvensis L.   [ILBC2, HC] 1 field bindweed
Convolvulus sepium L.   [ILBC2, HC] 5 hedge bindweed
Convolvulus silvaticus Kit. in Schrad. 3 shortstalk false bindweed
Convolvulus soldanella L.   [H&C] 1 beach morning-glory, seaside morning-glory
Cuscuta approximata Bab.   [Jepson 2nd] 0 alfalfa dodder
Cuscuta californica Hook. & Arn. var. californica    [Draft FNA (Mihai Costea)] 1 California dodder
Cuscuta campestris Yuncker   [Draft FNA (Mihai Costea)] 1 field dodder
Cuscuta cephalanthi Engelm.   [H&C] 0 buttonbush dodder
Cuscuta denticulata Engelm.   [H&C] 1 desert dodder
Cuscuta epilinum Weihe   [Draft FNA (Mihai Costea)] 0 flax dodder
Cuscuta epithymum Murray var. epithymum    [Draft FNA5 (Mihai Costea)] 0 thyme dodder, clover dodder
Cuscuta occidentalis Millsp.   [H&C] 1 western dodder
Cuscuta pacifica Costea and M. A. R. Wright   [Systematic Botany 34(4): 787–795. 2009.] 4 salt marsh dodder
Cuscuta pentagona Engelm.   [Draft FNA (Mihai Costea)] 2 field dodder
Cuscuta plattensis A. Nels.   [Draft FNA treatment (Mihai Costea)] 0 prairie dodder
Cuscuta suksdorfii Yuncker   [H&C] 1 mountain dodder

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