Dodder Family, Morning-Glory Family
Cuscutaceae [HC]
3 genera
17 species
8 subspecies and varieties
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Calystegia atriplicifolianight-blooming morning-glory
Distribution: Occurring along the Cascades crest in the Mount Adams area of Washington; southern Washington to California.
Habitat: Dry, rocky, open slopes or in ponderosa pine forests.
Origin: Native
Flowers: May-July
ssp. atriplicifolia – night-blooming morning-glory
Calystegia ×lucana
Origin: Introduced
Calystegia sepiumhedge bindweed
Distribution: Occurring on both sides of the Cascades crest in Washington; southern British Columbia to Oregon, east to the Atlantic Coast.
Habitat: Prairies, balds, forest edge, and other open areas generally at low elevations.
Origin: Native
Flowers: May-September
ssp. angulata – hedge bindweed, lady's nightcap
Calystegia silvaticalarge bindweed
Distribution: Occurring west of the Cascades crest in lowland western Washington; Washington to California.
Habitat: Roadsides, fields, thickets, forest edge, wastelots, and other disturbed open areas.
Origin: Introduced from Europe
Flowers: May-August
ssp. disjuncta – large bindweed
Calystegia soldanellaseashore false bindweed, beach morning glory
Distribution: Occurring west of the Cascades crest along the coast in Washington; British Columbia to San Diego County, California.
Habitat: Coastal beaches and sand dunes, often extending down to the high tide level.
Origin: Native
Flowers: April-September
Convolvulus arvensisfield bindweed
Distribution: Widely distributed throughout Washington; widely distributed throughout North America.
Habitat: Cultivated fields, roadsides, open areas, and other disturbed sites.
Origin: Introduced from Europe
Flowers: April-October
Cuscuta approximataalfalfa dodder
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to the Great Plains.
Habitat: Agricultural fields, often on alfalfa, and other disturbed, open areas.
Origin: Introduced
Flowers: June-August
Cuscuta californicaCalifornia dodder, chaparral dodder
Origin: Native
var. californica – California dodder
Cuscuta campestrisfield dodder
Origin: Native
Cuscuta cephalanthibuttonbush dodder
Origin: Native
Flowers: June - September
Cuscuta denticulatadesert dodder
Distribution: Central Washington; south to Baja California, east to Colorado.
Habitat: Parasitic on shrubs in arid shrub-steppe communities.
Origin: Native
Flowers: July-August
Cuscuta epithymumclover dodder, common dodder, thyme dodder
Origin: Introduced from Europe
var. epithymum – clover dodder, thyme dodder
Cuscuta indecorainelegant dodder, large-seeded dodder
Origin: Native
Cuscuta occidentaliswestern dodder
Distribution: In most Western states, Washington to California, east to Colorado.
Habitat: Found on many different hoasts.
Origin: Native
Flowers: June-August
Cuscuta pacificasalt marsh dodder
Distribution: British Columbia to Baja California.
Habitat: Coastal marshes and saltwater tideflats.
Origin: Native
Flowers: June-October
Cuscuta pentagonafield dodder, five-angled dodder
Distribution: Chiefly east of the Cascades in Washington; widely distributed throughout North America.
Habitat: Parasitic on a variety of hosts.
Origin: Introduced
Flowers: July-September
Cuscuta suksdorfiimountain dodder
Distribution: Southern Washington to the southern Sierra Nevada, California, at medium to high elevations.
Habitat: On Aster, Spraguea, and other hosts.
Origin: Native
Flowers: July - September