'umbrella plant' definitions:

noun

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 [syn: umbrella plant, Indian rhubarb, Darmera peltata, Peltiphyllum peltatum]

noun

Late blooming perennial plant of shale barrens of Virginia having flowers in flat-topped clusters [syn: umbrella plant, Eriogonum allenii]

noun

African sedge widely cultivated as an ornamental water plant for its terminal umbrellalike cluster of slender grasslike leaves [syn: umbrella plant, umbrella sedge, Cyperus alternifolius]