There he performed his research on jimsonweed. Some Debteras have also been noted to use jimsonweed (Datura stramonium) to cause hallucinations. This led to the plant being known as Jamestown weed, and later jimsonweed. The "mantuoluo" ( ""Datura stramonium"; jimsonweed" or "(Buddhism) mandala") contains highly toxic Tropane alkaloids. Jimsonweed, a paralyzing agent not native to the area, is found in her stomach. Jimsonweed ("Datura stramonium") and juniper berries were always avoided. Blakeslee used the jimsonweed plant as a model organism for his genetic research. Jimsonweed ("Datura") and mesquite ("Prosopis" spp.) as invasive species.