Note 1 at Mt. 13:26: These tares that are spoken of refer to the Old World variety of darnel, which is poisonous. Virtually all grains are almost indistinguishable from tares when they send up the first blade from the ground. By the time the tares become distinguishable, they are so well rooted that if growing in close proximity to a productive grain, uprooting the tares would also mean uprooting the productive grain; therefore, verse 30 admonishes us to let both grow together until the harvest. The grains of the tares are long and black in contrast to the wheat, and are easily recognizable at harvest time. Many will profess Christianity, but "by their fruits ye shall know them" (Mt. 7:20).