Prionosciadium thapsoides is a plant species native to the Mexican states of Veracruz and Mexico, as well as Guatemala.Mathias, Brittonia 2(3): 245 245 1936.Candolle, Augustin Pyramus de. Prodromus Systematis Naturalis Regni Vegetabilis 4: 215–216. 1830.CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, Mexico City.Standley, P. C. & L. O. Williams. 1966. Umbelliferae. In: P. C. Standley & L. O. Williams (eds.), Flora of Guatemala - Part VIII, Number 1. Fieldiana, Bot. 24(8/1): 21–66.
Prionosciadium thapsoides is a biennial herb with a large taproot. Leaves are bipinnately compound, the leaflets pinnately lobed with broad obovate lobes. Flowers are white, borne in dense compound umbels at the top of the flowering stalk.Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera. 2009. Cucurbitaceae a Polemoniaceae. 4(1): i–xvi, 1–855. In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México.Mathias, M. E. 1936. Studies in the Umbelliferae. V. Brittonia 2(3): 239–245.Field Museum, Amostras de Herbário da Neotrópica
Chemical studies have revealed the existence of several new dihydrofurochromones in the roots.J. Martín Torres-Valencia, O. Esther Chávez-Ríos, Carlos M. Cerda-García-Rojas, Eleuterio Burgueño-Tapia & Pedro Joseph-Nathan. 2008. Dihydrofurochromones from Prionosciadium thapsoides. Journal of Natural Products 71(11), pp 1956–1960.
References
External links photo of herbarium specimen at Missouri Botanical Garden, Prionosciadium thapsoides collected in Estado de México in 1935