1. any of certain species of plants

a. New Zealand burs (Acaena spp.)

b. greater burdock (Arctium lappa)

c. beggarticks (Bidens pilosa)

d. carrot bur parsley (Caucalis platycarpos)

e. wild teasel (Dipsacus fullonum)

f. catchweed (Galium aparine)

g. corn buttercup (Ranunculus arvensis)

h. southern sandbur (Cenchrus echinatus)

i. puncture vine (Tribulus terrestris)

j. broadleaf false carrot (Turgenia latifolia)

2. wart