Answer: cowslip

AnswerCrossword Clue
COWSLIP

Yellow primrose

COWSLIP

Animal's undergarment?

COWSLIP

Marsh marigold.

COWSLIP
Flower of the primrose family
COWSLIP
Marsh marigold
COWSLIPSass from Elsie?
COWSLIPPrimrose variety
COWSLIPSwamp wildflower
COWSLIPYellow-flowering primrose