| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Anacardiaceae | Rhus aromatica var. arenaria | Sand Sumac, Dune Sumac | Sandy woodlands and openings. | N. OH, MI, ne. IN west to IL and e. IA, mainly along the Great Lakes shores. |  |
| Anacardiaceae | Rhus aromatica var. aromatica | Fragrant Sumac, Squawbush | Dry to dry-mesic upland forests and woodlands, glade margins, stream banks, bluffs, and pastures, eastwards primarily in rocky, rather dry, woodlands, usually over mafic rocks (such as gabbro or diabase) or calcareous rocks, less commonly in sandy soils. | The species (if interpreted to include Rhus trilobata at varietal rank) ranges throughout much of temperate North America. Var. aromatica is the most eastern component of the complex, distributed from NH, ON, and MN south to Panhandle FL and TX. |  |
| Anacardiaceae | Rhus aromatica var. serotina | Midwestern Fragrant Sumac | Dry to dry-mesic upland forests and woodlands, glade margins, and bluffs. | S. WI, IA, and sc. SD south to s. IL, MO, AR, and e. TX. Some populations east of the Mississippi River in TN, KY, and AL may represent this taxon (D. Estes, pers. comm., 2012). |  |
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