Bothrops neuwiedi subtriangular, or headphone-shaped and oppose each other middorsally. The belly is white or yellow with gray speckling. Juveniles have a white tail tip. This species is found in South America east of the Andes and south of approx. 5°S, including Brazil (southern Maranhão, Piauí, Ceará, Bahia, Goiás, Mato Grosso, an isolated population in Amazonas, Rondônia and all southern states), Bolivia, Paraguay, Argentina (Catamarca, Córdoba, Corrientes, Chaco, Entre Ríos, Formosa, Jujuy, La Pampa, La Rioja, Mendoza, Misiones, Salta, San Juan, San Luis, Santa Fe, Santiago del Estero and Tucumán) and Uruguay. According to Vanzolini (1981), the type locality given is ""provincia
Lambertia formosa appear in spring and summer. It gains its common name from the horned woody follicles, which were used to make small devil-figures. The flowers hold profuse amounts of nectar and are pollinated by honeyeaters. Although "L. formosa" is uncommon in cultivation, it is straightforward to grow in soils with good drainage and a partly shaded to sunny aspect. It is readily propagated by seed. Unlike all other members of the genus "Lambertia", "L. formosa" is greatly resistant to the soil pathogen "Phytophthora cinnamomi". Specimens of "Lambertia formosa" were collected by botanists Joseph Banks and Daniel Solander during Lieutenant James Cook's