Generally, a tall conifer tree has small branches and a single stem, and the stem usually stands erect even if crown form changes. On the other hand, a broad-leaved tree sends out many large branches and it is difficult to determine which is the leading shoot. Thereupon, we investigated the relation between stem and branch growth, and discussed the form development for broad-leaved trees growing in a group. The leading shoot of most broadleaved trees has shifted with the progress of growth. Judging from the results, it is considered that most broad-leaved trees are capable of adapting to changes in the environment by easily shifting the leading shoot.