Web Directory

» A Close-up View of Four Beggar-ticks
   Photographic study by Brian Johnston of four species of Bidens with many fine images, both macroscopic and microscopic.
   http://www.microscopy-uk.org.uk/mag/artaug05/bjbticks.html

» Bidens alba
   Two photographs of this species.
   http://www.rain-tree.com/Plant-Images/bidens-pic.htm

» Bidens amplectens
   image
   http://www.botany.hawaii.edu/faculty/carr/images/bid_amp.jpg

» Bidens aristosa
   Bearded Beggarticks.
   http://plants.usda.gov/java/profile?symbol=BIAR

» Bidens cernua
   Photographs of nodding beggarticks, its flowers and foliage.
   http://www.em.ca/garden/native/nat_bidens_cernua.html

» Bidens connata
   Purplestem Beggarticks.
   http://plants.usda.gov/java/profile?symbol=BICO5

» Bidens coronata
   Crowned Beggarticks.
   http://plants.usda.gov/java/profile?symbol=BICO

» Bidens discoidea
   Small Beggarticks.
   http://plants.usda.gov/java/profile?symbol=BIDI

» Bidens frondosa
   Devil's Beggartick.
   http://plants.usda.gov/java/profile?symbol=BIFR

» Bidens frondosus
   Images, specimen location map, list of habitats, and links to further information.
   http://www.botany.wisc.edu/cgi-bin/detail.cgi?SpCode=BIDFRO&Genus=Bidens&Family=Asteraceae&Species=frondosus&Common=common%20beggar-ticks%2C%20devil%27s%20beggar-ticks&photo=..%2Fphotos%2FBIDFRO_HHI.jpg&thumbmaps=..%2Fthumbmap%2FBI

» Bidens laevis
   Smooth Beggartick.
   http://plants.usda.gov/java/profile?symbol=BILA

» Bidens mitis
   Smallfruit Beggarticks.
   http://plants.usda.gov/java/profile?symbol=BIMI

» Bidens pilosa
   Images, description, and invasiveness.
   http://www.hear.org/pier/bipil.htm

» Bidens pilosa: Picao Preto
   Description and several photographs of this annual herb and information on its herbal properties, tribal and herbal medicine uses, the chemicals it contains, its biological activities and clinical research.
   http://www.rain-tree.com/picaopreto.htm

» Bidens spp.
   Photographs of several species growing in their natural habitat in Hawaii.
   http://nativehawaiianflora.com/pages/i-k/kookoolau.html

» Bidens tripartita
   Threelobe Beggarticks.
   http://plants.usda.gov/java/profile?symbol=BITR

» Bidens tripartite
   Photograph, systematic position, morphology, biology, distribution, ecology and economic significance of Spanish Needles.
   http://www.agroatlas.ru/weeds/Bidens_tripartita_en.htm

» Coreopsis Beggarticks: Bidens polylepis
   Photographs of varying stages in the growth of this annual plant, with its description and identifying characteristics.
   http://www.ppws.vt.edu/scott/weed_id/bidpo.htm

» Devils Beggarticks or Stick-tights: Bidens frondosa
   Photographs of varying stages in the growth of this annual plant, with its description and identifying characteristics.
   http://www.ppws.vt.edu/scott/weed_id/bidfr.htm

» Spanish Needles: Bidens bipinnata
   Photographs of varying stages in the growth of this annual plant, with its description and identifying characteristics.
   http://www.ppws.vt.edu/scott/weed_id/bidbi.htm