Bidens
beggar-ticks, bur-marigold, sticktight
7 species
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Bidens amplissimaVancouver Island beggar ticks
Distribution: Vancouver Island, British Columbia, and Snohomish County, Washington.
Habitat: Wet places.
Origin: Native
Flowers: July - October
Bidens beckiiBeck's water marigold
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to Oregon, east across northern U.S. and Canada to the Atlantic Coast.
Habitat: Lowland ponds and lakes.
Origin: Native
Flowers: July-September
Bidens cernuabur marigold, nodding beggar ticks
Distribution: Widely distributed throughout much of Washington; widely distributed throughout North America.
Habitat: Stream banks, pond and lake edges, and other wet places at low elevations.
Origin: Native
Flowers: July-September
Bidens connataswamp
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, also in Idaho; eastern North America where native.
Habitat: Marshes, shorelines and other wet, sunny areas.
Origin: Introduced from eastern North America
Flowers: August-September
Bidens frondosaleafy beggarticks, devil's pitchfork, sticktight
Distribution: Widely distributed throughout much of Washington; widely distributed throughout North America except Alaska and northernmost Canada.
Habitat: Wet areas at low elevations.
Origin: Native
Flowers: June-October
Bidens tripartitathree lobed beggarticks
Distribution: Introduced in most of the United States, but uncommon in our area.
Habitat: Wet waste places, primarily at low elevtions.
Origin: Introduced
Flowers: August - October
Bidens vulgatatall beggarticks, western sticktight
Distribution: Distributed widely throughout Washington; British Columbia east to Nova Scotia, and southward throughout much of the U.S.
Habitat: Streamsides, ponds, lakes, ditches and other moist to wet waste places.
Origin: Native
Flowers: July-October