burr of teasel comb (dispacus sylvestris)

attention autumn backdrop background barbed biennial bloom bud bur caution closeup cocklebur cover curly danger dangerous defense defensive diagonal dipsacaceae dispacus dried dry fade fall field floral flower guard hard herbaceous hook hurt irritant lawn meadow needle old pain pair passing pasture pin plant prickle prickly protection protective seasonal seed sharp spear spike spiky stick sting stingy sylvestris teasel teazel teazle teeth terrain thistle thorn thorny torn two vegetation wall weed wild wooden