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Bidens bigelovii
Bidens bigelovii, commonly called Bigelow's beggarticks[3], is an annual herbaceous flowering plant in the Asteraceae family. It is native to the southwestern and south-central United States (Arizona, New Mexico, Texas, Oklahoma, Colorado) and as far south as Oaxaca, Mexico.[4][5] DescriptionBidens bigelovii is an annual herbaceous flowering plant that grows between 10 to 80 cm (3.9 to 31.5 in) tall. It usually flowers with just one bloom with around 13-25 yellow disc florets and sometimes up to five white ray florets. The leaves are 2.5 to 9 cm long by 1.5 to 3.5 cm wide, and are attached to petioles 0.5-2.5 cm in length.[6] Distribution and habitatBidens bigelovii has been found in the United States (Arizona, Colorado, New Mexico, Oklahoma, Texas), Mexico, Guatemala, and Panama. It typically grows along streams or other wet sites at elevations of 900-2000 metres from sea level.[6][2] ConservationAs of November 2024[update], NatureServe listed Bidens bigelovii as Secure (G5) worldwide. In individual states within the United States, it is listed as Possibly Extirpated (SH) in Oklahoma, Vulnerable (S3) in Colorado, and No Status Rank (SNR) in New Mexico, Texas, and Arizona.[1] TaxonomyBidens bigelovii was named by Asa Gray and first described in 1859 in the Report on the United States and Mexican boundary survey.[2] References
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