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Bidens is a genus with about 200 species in the family Asteraceae. The species Bidens laevis, also known as "beggar tick," is a common fall flower in southeastern USA.

Species

• Bidens alba (Linnaeus) A. P. Candolle
• Bidens alba (L.) DC. -- Romerillo
• Bidens amplectens Sherff -- Kokolau
• Bidens amplissima Greene -- Vancouver Island Beggarticks
• Bidens aristosa (Michx.) Britt. -- Bearded Beggarticks, Bearded Beggerticks, Long-bracted Beggar-ticks, Tickseed Sunflower
• Bidens asymmetrica (Levl.) Sherff -- Koolau Range Beggarticks
• Bidens aurea (Ait.) Sherff -- Arizona Beggarticks
• Bidens bidentoides (Nutt.) Britt. -- Delmarva Beggarticks
• Bidens bigelovii Gray -- Bigelow Beggarticks, Bigelow's Beggarticks, Stickseed
• Bidens bipinnata L. -- Spanish Needles, Spanish-needles
• Bidens campylotheca Schultz-Bip. -- Viper Beggarticks
• Bidens cernua L. -- Bur Marigold, Nodding Beggartick, Nodding Beggarticks, Nodding Bur Marigold, Nodding Burmarigold, Nodding Burr-marigold, Sticktight
• Bidens cervicata Sherff -- Kauai Beggarticks
• Bidens conjuncta Sherff -- Bog Beggarticks
• Bidens connata Muhl. ex Willd. -- Purple-stem Beggarticks, Purplestem Beggarticks
• Bidens coronata (L.) Britt. -- Crowned Beggarticks
• Bidens cosmoides (Gray) Sherff -- Cosmosflower Beggarticks
• Bidens cuneata Sherff -- Cuneate Bidens, Wedge Beggarticks
• Bidens cynapiifolia Kunth -- West Indian Beggarticks
• Bidens discoidea (Torr. & Gray) Britt. -- Discord Beggarticks, Small Beggarticks, Swamp Beggar-ticks
• Bidens eatonii Fern. -- Bident d'Eaton, Eaton's Beggar-ticks, Eaton's Beggarticks
• Bidens ferulifolia (Jacq.) DC. -- Apache Beggarticks
• Bidens forbesii Sherff -- Coastalbluff Beggarticks
• Bidens frondosa L. -- Bur Marigold, Devil's Beggartick, Devil's Beggarticks, Devil's Bootjack, Devil's-pitchfork, Devils Beggartick, Pitchfork Weed, Sticktight, Sticktights, Tickseed Sunflower
• Bidens gardneri Baker -- Ridge Beggartick
• Bidens hawaiensis Gray -- Hawai'i Beggarticks
• Bidens heterodoxa (Fern.) Fern. & St. John -- bident différent, Connecticut Beggar-ticks, Connecticut Beggarticks
• Bidens heterosperma Gray -- Rocky Mountain Beggarticks
• Bidens hillebrandiana (Drake) O. Deg. -- Seacliff Beggarticks
• Bidens hyperborea Greene -- Estuary Beggarticks
• Bidens laevis (L.) B.S.P. -- Burmarigold, Smooth Beggartick, Smooth Beggarticks
• Bidens lemmonii Gray -- Lemmon's Beggarticks
• Bidens leptocephala Sherff -- Few-flower Beggarticks, Fewflower Beggarticks
• Bidens macrocarpa (Gray) Sherff -- Largefruit Beggarticks
• Bidens mauiensis (Gray) Sherff -- Maui Beggarticks
• Bidens menziesii (Gray) Sherff -- Mauna Loa Beggarticks
• Bidens micrantha Gaud. -- Grassland Beggarticks
• Bidens mitis (Michx.) Sherff -- Smallfruit Beggarticks
• Bidens molokaiensis (Hbd.) Sherff -- Molokai Beggarticks
• Bidens X multiceps Fassett -- Beggartick
• Bidens pilosa L. -- Beggar's Tick, Cobbler's Pegs, Fisi'uli, Hairy Beggarticks, Kofe tonga, Matakaro, Spanish Needle, Spanish Needles
• Bidens populifolia Sherff -- Oahu Beggarticks
• Bidens reptans (L.) G. Don -- ManzanillaTtrepador
• Bidens sandvicensis Less. -- Shrubland Beggarticks
• Bidens squarrosa Kunth
• Bidens tenuisecta Gray -- Slim-lobe Beggarticks, Slimlobe Beggarticks
• Bidens torta Sherff -- Corkscrew Beggarticks
• Bidens tripartita L. -- Three-lobe Beggarticks, Threelobe Beggarticks
• Bidens valida Sherff -- Mt. Kahili Beggarticks
• Bidens vulgata Greene -- Big Devils beggartick, Tall Beggarticks, Western sticktight
• Bidens wiebkei Sherff -- Ko`oko`olau, Wiebke's Beggarticks