madwort
/ˈmædˌwɜrt/
noun
- A low-growing plant with small yellow or white flowers, often found in dry or rocky places; also called alyssum.
- The herbalist used madwort in remedies, though it is mostly grown as an ornamental today.
- Madwort grew in the cracks of the old stone wall, brightening the gray rocks.
- She planted madwort along the edge of the garden path for a splash of color.