Noun

• 1. rhizomatous perennial herb with large dramatic peltate leaves and white to bright pink flowers in round heads on leafless stems; colonizes stream banks in the Sierra Nevada in California

• 2. late-blooming perennial plant of shale barrens of Virginia having flowers in flat-topped clusters

• 3. African sedge widely cultivated as an ornamental water plant for its terminal umbrellalike cluster of slender grasslike leaves