Bidens aurea

Bidens aurea , the Arizona beggarticks,^[3] is a North American species of flowering plant in the family Asteraceae. It is widespread across much of Mexico and found also in Arizona and Guatemala.^[4][5][6][7] The species is also naturalized in parts of Europe and South America.^[8][9]

Bidens aurea
from naturalized population in Chile
Conservation status
Secure  (NatureServe)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Bidens
Species:	B. aurea
Binomial name
Bidens aurea (Aiton) Sherff
Synonyms[2]
Synonymy Bidens arguta Kunth Bidens decolorata Kunth Bidens heterophylla Ortega Bidens longifolia DC. Bidens luxurians Willd. Bidens tetragona (Cerv.) DC. Bidens warszewicziana Regel Coreopsis aurea Dryand. ex Aiton Coreopsis coronata Walter 1788 not L. 1763 Coreopsis ferulifolia Jacq. Coreopsis lucida Cav. Coreopsis luxurians (Willd.) P. Pell. Coreopsis nitida Cav. Coreopsis nitida Hort. Coreopsis tetragona Cerv. ex La Llave & Lex. Diodonta aurea (Dryand. ex Aiton) Nutt. Diodonta leptophylla Nutt.

Description

Bidens aurea is an annual herb occasionally reaching a height of 250 cm (100 inches). It produces numerous yellow or whitish flower heads containing both disc florets and ray florets. It grows primarily in wet areas such as marshes and streambanks.^[10]