桓

• Botanical: A specific variety of tree.
• Architectural: A sturdy upright support, such as a pillar, post, or railing (e.g., those flanking a gate or supporting a roof structure).
• Onomastic: Used as a family name or in posthumous titles (e.g., Duke Huan), where it denotes stability, prominence, and "uprightness."

The semantic range of the glyph generally moves from the material (the tree) to the object (the pillar) to an abstract quality (stability/uprightness). In contexts involving structural descriptions or persons of high status, the botanical meaning can likely be discounted.