There were scarlet berries Maybe they were bittersweet, And all the ferns Were tobacco-coloured.
"I Run with the Fox"
Mona Gould
He struggled up through the tangled growth of smartweed and bittersweet, tore a length of lichened boarding from the swaying posts, and walked down the road with it.
"Under the Skylights"
Henry Blake Fuller
She popped the corn at night and the following day made a trip up the ravine, where she gathered all the bittersweet berries, swamp holly, and wild rose seed heads she could find.
"A Daughter of the Land"
Gene Stratton-Porter