From the Greek dipsa, “thirst,” from the connate (joined or attached) leaf bases that in some ssp. hold water
Species
fullonum
Relating to fullers or people who full cloth, a process of shrinking or thickening cloth by moistening, heating and pressing. This species is often referred to as fuller’s teasel, although interestingly the Jepson Manual calls it wild teasel and D. sativus as fuller’s teasel. The connection to fullers is that it has bristly flower heads used by fullers to raise the nap on cloth