bur ragweed
Ambrosia confertiflora DC.

Ambrosia confertiflora, known as bur ragweed, is a species in the Asteraceae family. It was first described in 1836 and is native to North America. It is found in regions including Arizona, California, Colorado, Kansas, New Mexico, Oklahoma, and parts of Mexico, as well as in other areas like Israel, Australia, and the Dominican Republic.
Description
Ambrosia confertiflora is a member of the Asteraceae family and is commonly referred to as bur ragweed. It is a North American species that has a wide distribution, occurring in the United States (Arizona, California, Colorado, Kansas, New Mexico, Oklahoma), parts of Mexico, Israel, Australia, and other regions. The species was first published in 1836 under the authorship of DC. It is also known by the common name weakleaf bur ragweed.
Other common names
bur ragweedweakleaf bur ragweed
Distribution
PS · IL · Israel · AU · BG · NO · Arizona · California · Colorado · Dominican Republic · Kansas · Mexican Pacific Is. · Mexico Central · Mexico Gulf · Mexico Northeast · Mexico Northwest · Mexico Southwest · New Mexico · New South Wales · Oklahoma · Palestine · Queensland · South Australia · Tennessee · Texas · Utah
Synonyms
Franseria caudataGaertneria tenuifoliaFranseria strigulosaFranseria tenuifolia var. tenuifoliaAmbrosia simulansFranseria tenuifolia var. tripinnatifidaAmbrosia caudataFranseria hispidissimaFranseria incanaFranseria pringleiFranseria confertifloraGaertneria tenuifoliaAmbrosia fruticosaFranseria tenuifolia
