Global InformationBidens aristosa information
| Bidens aristosa | |
|---|---|
| |
Conservation status
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 Secure (NatureServe)[1] | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Bidens |
| Species: | B. aristosa
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| Binomial name | |
| Bidens aristosa (Michx.) Britt.
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| Synonyms[2] | |
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Bidens aristosa is a North American species of plant in the sunflower family. Common names include bearded beggarticks,[3] western tickseed,[4] showy tickseed,[5] long-bracted beggarticks, tickseed beggarticks, swamp marigold, and Yankee lice. It is native to the central United States, but has been introduced to the eastern United States[6] and can be found in south-central Canada, from Maine south to Florida and west as far as Ontario, Texas, and Nebraska.[7][8] It grows in wet meadows and abandoned fields.[9]
Bidens aristosa is an annual herb occasionally reaching 150 cm (5 feet) in height. It has numerous yellow flower heads with both ray florets and disc florets. Fruits are dry achenes bearing barbs that get caught in fur or clothing, thus aiding in the plant's dispersal.[7] The plant attracts native bees.[9]
It has been introduced into the eastern United States from the Midwest to much of Maine to Florida. It likely spread by the import of food crops or wool. The first sighting of Bidens aristosa in the east was by the Potomac River near Glen Echo, Maryland in 1902. [6]
- ^ "NatureServe Explorer 2.0". explorer.natureserve.org.
- ^ "Bidens aristosa". The Global Compositae Checklist (GCC) – via The Plant List. Note that this website has been superseded by World Flora Online
- ^ USDA, NRCS (n.d.). "Bidens aristosa". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 9 January 2016.
- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
- ^ "Showy Tickseed". Roundstone Native Seed Company.
- ^ a b "Bidens aristosa". invasions.si.edu. Retrieved 12 February 2023.
- ^ a b Strother, John L.; Weedon, Ronald R. (2006). "Bidens aristosa". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ "Bidens aristosa". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
- ^ a b "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2021-12-15.