A taxonomic <xref>genus</xref> within the <xref>tribe</xref> <xref>Heliantheae</xref> — the <xref>ragweeds</xref>.
User Defined Definitions
"a mixture of nectar and pollen prepared by worker bees and fed to larvae"
"any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma"
"fruit dessert made of oranges and bananas with shredded coconut"