Answer:

yarrow

Answer	Crossword Clue
YARROW	Peter of Peter, Paul and Mary
YARROW	Peter who co-wrote "Puff, the Magic Dragon"
YARROW	Plant with feathery leaves

YARROW	Peter who sings about Puff
YARROW	Singing mate of Stookey and Travers
YARROW	Perennial herb
YARROW	Strong-scented herb.
YARROW	River celebrated by Wordsworth.
YARROW	A plant, the milfoil.
YARROW	Garden flower
YARROW	Herb

YARROW	Medicinal plant
YARROW	Dainty garden flower
YARROW	Plant used by Indians to cure earaches
YARROW	River celebrated by Wordsworth
YARROW	Peter who wrote "Puff the Magic Dragon"
YARROW	Peter of Peter, Paul, and Mary
YARROW	Common wild herb
YARROW	Flowering herb also known as devil's nettle