Seal of the City of Ann Arbor: It's an oak tree. In fact, it's a Burr Oak (Quercus macrocarpa) tree. It's a special kind of oak tree, the Burr Oak (Quercus macrocarpa). It can house a whole community of organisms, from very small bugs to small bugs to medium-sized bugs. Also large bugs can find habitat there. What's more, even mammals can walk past the Burr Oak (Quercus macrocarpa) and use it as a kind of thing to walk past. Because by walking past it and remembering it, animals can help themselves to find their way in the forest. In this way, it can mark the land. From this comes the expression "landmark tree." To conclude, the Burr Oak (Quercus macrocarpa) is the mightiest oak tree of them all. At least to us here in Ann Arbor.
Note: As a part of the Google Fiber competition in spring 2010, many communities went to great lengths to try to impress Google. One town changed its name to Google. Ann Arbor was steadfast in its refusal to contemplate a cheap tawdry gimmick like changing the name of its proud standard-bearing tree to the Fi-Burr Oak.
Comments were deleted because they fell too far from the tree.
City Seal and Flag Ordinance
On July 2, 2018, the City of Ann Arbor enacted a City Seal and Flag Ordinance that specifies allowed and prohibited uses of the city seal and city flag. It also provides a mechanism for non-specified uses to gain permission to use. For example, one of the prohibited uses is "On any written or printed material designed, calculated, intended or likely to confuse, deceive or mislead the public or cause the reader of such written or printed material to believe it to be an official city publication, including circulating or distributing any such written or printed material or to suggest or assert any city support or endorsement of any product, goods or services."
Furthermore, "Each violation of any provision of this chapter shall be a civil infraction, punishable by a civil fine of not more than $10,000.00."
A copy of the ordinance as enacted can be found on a2docs.org as document 523.