CALTHA, L. Marsh Marygold, Meadowbouts, Cowslip. (The real cowslip is Primula. -Henriette.) Several species, all acrid when fresh, not eaten by sheep; they kill the cattle bruising them, inflaming their stomach: yet Cutler says that they are a good pot herb boiled; see Ranunculus. The flower buds are similar to capers when pickled. The juice stains yellow. Said to be equivalent of Chelidonium.
Medical Flora, or Manual of the Medical Botany of the United States of North America, Vol. 2, 1830, was written by C. S. Rafinesque.