Beck's Water Marigold, Water Marigold: Bidens beckii (Synonyms: Megalodonta beckii, Megalodonta beckii var. beckii, Megalodonta beckii var. hendersonii, Megalodonta beckii var. oregonensis) -
Nodding Beggarticks, Bur Marigold: Bidens cernua (Synonyms: Bidens cernua var. cernua, Bidens cernua var. elliptica, Bidens cernua var. minima) -
Devil's Beggarticks, Leafy Beggarticks, Sticktight, Devil's Pitchfork: Bidens frondosa - Ray flowers lacking.
Three-lobed Beggarticks: Bidens tripartita (Synonym: Bidens connata) -
Big Devils Beggartics, Tall Beggarticks, Western Sticktight: Bidens vulgata -