‘Zhongshanshan’ is the general designation for the superior interspecific hybrid clones of Taxodium species, which is widely grown for economic and ecological purposes in southern China. Growth is the priority objective in ‘Zhongshanshan’ tree improvement. | High-density genetic map construction and quantitative trait loci identification for growth traits in Taxodium distichum var. distichum T. mucronatum T. mucronatum