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- polylepis, Bidens tenuisecta, Bidens trichosperma, Bidens tripartita, Bidens vulgata Linnaeus Sp. Pl. 2: 831. 1753. , Gen. Pl. ed. 5, 362. 1754. John L. Strother17 KB (808 words) - 20:12, 5 November 2020
- puberula (Wiegand) Rydberg Bidens vulgata var. dissectior Sherff Bidens vulgata var. puberula (Wiegand) Greene Bidens vulgata var. schizantha Lunell Treatment5 KB (436 words) - 20:12, 5 November 2020
- discoidea is not nearly as variable morphologically as the closely related B. vulgata or B. frondosa. It differs from B. frondosa in having smaller heads, cypselae4 KB (420 words) - 20:12, 5 November 2020