crosswort

plural crossworts

1. A perennial plant, Cruciata laevipes, family Rubiaceae, of Europe and western Asia; smooth bedstraw.

   One cure for a headache involved binding the stalk of the herb crosswort to the head with a red bandana[.]

   1999, Robert Lacey, Danny Danziger, The Year 1000: What life was like at the turn of The First Millennium, London: Abacus, published 2000, page 126

2. The plant Phuopsis stylosa, of western Europe and Britian, often grown as a garden ornamental.
3. Lysimachia quadrifolia, a herbaceous plant in the family Primulaceae, native to North America.