[efloras.org] Europe & Africa Native, Habitat: Flowering spring. Neglected gardens, roadsides, waste places; 0 to 500 m; introduced; Calif.; Europe (Balearic Islands); n Africa. Silene pseudatocion is occasionally grown in gardens and rarely occurs as a weed in California. It is similar to another garden escape, S. pendula, but it differs in having a calyx tube with a very long, slender base and unlobed petals. (link added by Mary Ann Machi)