Viburnum veitchii subsp. rotundifolium Viburnum glomeratum subsp. rotundifolium Viburnum glomeratum subsp. glomeratum Viburnum veitchii Viburnum veitchii subsp. magnificum Viburnum glomeratum var. rockii Viburnum glomeratum subsp. magnificum
World Flora Online, accessed June 20, 2024