Acantilados Federico Santa María, Nature reserve in Laguna Verde, Chile.

Acantilados Federico Santa María is a 295.5-hectare nature sanctuary in Laguna Verde, Valparaíso Region, declared by decree 699 on 30 May 2006. The cliffs form the southern distribution limit of the Tupa (Lobelia polyphilla) and the northern limit of the Pasmo and Menonvillea linearis var. Virgata. Its slopes hold coastal species listed in CONAF's Red Book, among them the coastal quisco, campo orchid and Puya chilensis.

The cliffs were declared a Nature Sanctuary by exempt decree 699 on 30 May 2006, covering about 295.5 hectares in Laguna Verde, Valparaíso Region. The declaration cited the site's plant diversity, including species listed in CONAF's Red Book as rare, vulnerable or scarce.

The reserve's name honours Federico Santa María, the Valparaíso philanthropist. Its flora includes species listed in CONAF's Red Book, such as the vulnerable coastal quisco and the rare arrayán de hoja roja. The cliffs form the southern limit of the tupa (Lobelia polyphilla) and the northern limit of the pasmo and Menonvillea linearis var. virgata.

Access is from the main entrance at Laguna Verde through pathways that cross the reserve. Wear sturdy shoes as the terrain is uneven and coastal winds are common throughout the year.

The cliffs mark the southern limit where Tupa plants grow and the northern boundary for several specialized coastal plant species. These botanical boundaries make the reserve an important site for understanding how plant populations are distributed along the South American Pacific coast.