This quote appears in

Bradley, Marion Zimmer. Darkover Landfall. Boston: Gregg Press, 1978, page 124—which seems to be a science fiction novel.

When the day wears away,
Sad I wander by the water,
Where a man, born of sun,
Wooed the fairy's daughter,
Why should I sit and sigh,
Pulling bracken, pulling bracken
All alone and weary?