Highly invasive clonal perennial, sprouting from creeping roots. Forms large colonies on levees, high tide lines, brackish marsh plains, and alkali or subsaline seasonal wetlands throughout the estuary. Most abundant in southern San Francisco Bay, Suisun and Martinez marsh areas, and northern San Pablo Bay. Large, fleshy taproots have strong scent of horseradish. (description by plant ecologist Peter Baye)


More photos at CalPhotos