She chose to write under a male "nomme de plume" so that her work would be judged on its own merits; the name came from a character in a novel by Eugène Fromentin.
Her poems were first published in small literary magazines and later in the Mercure de France.
She was a mentor for the American poet May Sarton, who took Closset as inspiration for her novel The Single Hound.
[1] She appears in the neo-impressionist painting Young Women By the Sea (or The Promenade) by Théo van Rysselberghe.
[2] Her poem Le Don silencieux was set to music by Gabriel Fauré.