Meaning : 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.

Meaning : Late blooming perennial plant of shale barrens of Virginia having flowers in flat-topped clusters.

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