Solidago rigida is a member of the Aster family and is referred to as Stiff Goldenrod. It grows to 3' in size, and blooms in the fall, producing a cluster of yellow flowers that have a distinctly flat head. It enjoys growing  in dry to medium humus soil and requires full sunlight. If left unattended, Stiff Goldenrod can grow wild as most animals do not graze on it.