Bidens torta, the corkscrew beggarticks, is a flowering plant species in the family Asteraceae. Bidens torta is endemic to Hawaii. Chemical derivatives Methylated okanin derivatives can be isolated from Bidens torta. Those include okanin 3,4,3′,4′-tetramethyl ether, okanin 3,4,3′-trimethyl ether 4′-glucoside, okanin 4-methyl ether 4′-glucoside and okanin 4-methyl ether 4′-glucoside monoacetate. Okanin 3,4-dimethyl ether 4′-glucoside can also be isolated. References External links torta Endemic flora of Hawaii Plants described in 1920