Above: Devil's Beggarticks on edge of woods between Oak Savanna and Marion Dunn Pond in Madison, Wisconsin. (9/6/19).
Devil's Beggarticks - Bidens frondosa
Devil's Beggarticks is a native plant that grows from 8" - 48" tall.
Devil's Beggartick prefer wet to moist; disturbed areas.
Devil's Beggarticks flowers are petal-less, have a yellow-orange center disk about 1/2 long to 3/4 inch wide made up of tiny 5-lobed disk flowers. Devil's Beggarticks bloom from late June to October.
Other Names: Common beggar-ticks
Bidens: derived from Latin bis, "twice," and dens, "tooth." Hence meaning "2-toothed" and referring to the bristles on the achenes.
For more information on the Devil's Beggarticks, visit Wikipedia.
Or, visit the UW-Madison Wisconsin State Herbarium website page about Devil's Beggarticks.
Above: Devils Beggarticks achenes (seeds) are mostly flat with with 2- bristly awns.
Above: Devil's Beggarticks on edge of woods between Oak Savanna and Marion Dunn Pond. (9/6/2019).
Above: Devil's Beggarticks specimen collected in Superior, Wisconsin. (8/29/1910).
Above: Devil's Beggarticks specimen collected in Crawford County, Wisconsin. (9/18/1960).
Above: Bidens frondosa illustration from USDA.
Above: Bidens frondosa photo by Frank Mayfield, CC BY-SA 2.0, via Wikimedia Commons.