University of Michigan

Trees & plants

Explore all mapped taxa within 25 miles of central Ann Arbor. Select families, genera, or individual taxa.

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Datasets · All enabled

Point locations only

Selected species colors

About the map

Center: 42.2808, −83.7430; radius: 25 miles. All data was downloaded September 30, 2026.

Central Campus trees come from the ArborPro inventory shared by U-M Grounds (downloaded October 5, 2026; 1,101 standing trees; 12 stumps and vacant sites are excluded; ArborPro diameters are in inches and heights in feet). It is combined with Matthaei–Nichols Living Collections (September 25, 2026) and the Woody Plants study view. The older U-M campus inventory (May 26, 2021) is superseded by ArborPro and starts disabled; enable it under Datasets to compare. ArborPro cultivar and trade names are grouped under the species; the name as entered appears in each popup as “Inventory name”. The study view shares plant IDs with the collection and is deduplicated into those same records.

Shared plant IDs are combined; different plants that reuse an accession number remain separate. Cross-source point matching requires compatible identity and unambiguous locations within one meter. The precise newer records and current names take priority when sources overlap.

Plants marked dead, deaccessioned, cut, removed, or historical are excluded. Records with unknown status remain visible and are labeled in popups.

Solid dots are point-mapped locations. Dashed markers represent approximate subzone, zone, or property locations. Multiple records at one search area are grouped; colored slices represent the selected taxa. Click a slice to see that taxon's records. “Point locations only” hides these area records.

The newer collection includes trees, shrubs, vines, and herbaceous plants. Native scientific names organize the taxon filters; older common-name categories and cultivars are joined where unambiguous. Vague old labels remain unresolved. Only Fagaceae starts selected.

ArborPro Central Campus · Campus inventory 2021 · Living Collections · Woody Plants map

Leaflet and the records are embedded. Basemap tiles require internet.

GPS: the GPS button shows a blue stick figure that follows your position while it stays on. Browsers only allow location on HTTPS pages or on http://localhost. A copy opened straight from disk (file://) is blocked in Chrome, so open it with the included “Open Tree Map with GPS.command” launcher, or host the file online to use it on a phone.

25-mile radius · Solid dots: points · Dashed markers: search areas