Bothrops ammodytoides is known as "Yarará ñata" (Spanish for "short-nosed yarará"), making reference to its characteristic snout. Found only in Argentina in the provinces of Buenos Aires, Catamarca, Córdoba, Chubut, La Pampa, La Rioja, Mendoza, Neuquén, Río Negro, San Juan, San Luis, Santa Cruz and Tucumán. The vertical distribution ranges from sea level to at least altitude. The type locality was first listed as "northern Argentina" and later emended to "province of Mendoza" Campbell and Lamar (1989). The geographic range of "Bothrops ammodytoides" extends to 47° S Latitude, which may make it the world's southernmost snake. Prefers dry regions, occurring in temperate
Dicentra formosa on the western slope of the Sierra Nevada. Subsp. "oregana" grows in a small area of southern Oregon and northern California in serpentine soils in the Siskiyou Mountains. These subspecies are also distinguished by appearance: "Dicentra formosa" is widely grown as a garden plant, and several cultivars have been developed. Those marked have gained the Royal Horticultural Society's Award of Garden Merit: There are several hybrid cultivars involving "D. formosa", the eastern American species "D. eximia" and the Japanese species "D. peregrina": The Pacific bleeding-heart ("Dicentra formosa" subsp. "formosa") was first noted by Europeans when the Scottish surgeon and naturalist