noun, masculine/si.lɛn/plural: silènes
silène is masculine in French.
silen; campion (of the genus Silene); great banded grayling (Brintesia circe)
From Middle French silene, from Latin sīlēnus (“silen”), named after Sīlēnus (“Silenus”), from Ancient Greek Σῑληνός (Sīlēnós).