Photos of the bark of Carpinus coreana, cordata, laxiflora, and turczaninovii

From the top: Carpinus coreana, C. cordata, C. laxiflora, and C. turczaninovii



These specimens are all now growing in the Asian Collections at the US National Arboretum. All were grown from seed wild collected in China, Korea, or Japan. All four have distinctive bark distinctly different from each other.