What is "staggerbush"

Staggerbush \Stag"ger*bush`\ (-b[usd]sh`), n. (Bot.) An American shrub ( Andromeda Mariana) having clusters of nodding white flowers. It grows in low, sandy places, and is said to poison lambs and calves.
--Gray.

n. (context botany English) Any of the genus ''Lyonia'' of ericaceous flowering plants.

n. deciduous shrub of coastal plain of the eastern United States having nodding pinkish-white flowers; poisonous to stock [syn: stagger bush, Lyonia mariana]