Silene perlmanii was created in 1989.
Silene serpentinicola was created in 2004.
Silene ovata was created in 1813.
Silene noctiflora was created in 1753.
Silene nutans was created in 1753.
Silene stenophylla was created in 1842.
Silene salmonacea was created in 2006.
The population of Fresno de Sayago is 242.
The population of Cabañas de Sayago is 187.
Roelos de Sayago's population is 180.
Alfaraz de Sayago's population is 194.
Muga de Sayago's population is 472.