Akodon spegazzinii is found in northwestern Argentina, in the provinces of Salta, Catamarca, Tucumán, La Rioja, and Mendoza, at altitudes of . Although its main distribution is in the northern provinces of Salta, Tucumán, and Catamarca, there are also scattered records from the more southern provinces of La Rioja and Mendoza, where it is likely restricted to patches of wet habitat. "Akodon alterus" has been reported from Jujuy, but this record was likely based on misidentified specimens of "A. boliviensis", and records of "Akodon spegazzinii" from Jujuy were based on misidentified "A. sylvanus". "Akodon spegazzinii" is known from a paleontological site in
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