Calystegia
bindweed, morning-glory
5 species
3 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 ×lucanahybrid bindweed
Distribution: Occurring west of the Cascades crest in Washington; Washington to California.
Habitat: Thickets, fields, roadsides, shores, wastelots, and other disturbed areas at low elevations.
Origin: Introduced from Europe
Flowers: June-August
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