Celtis sinensis seedling

Celtis sinensis (Chinese hackberry) is a deciduous tree native to East Asia. I offer the seedling in Pic.1, which was started this spring from seeds that I collected in South Korea. It is a fast growing species and the seedling is already ~50cm tall. In Pic.2 is a seedling from the same batch of seeds, but started one year earlier in 2025. This species is also used for bonsai (examples from Internet in Pics. 3&4).