Tree Audio Recording AvailablePurdue Plant Doctor Available Fraxinus pennsylvanica 'Cimmzam' [sold as Cimmaron®] [Cimmaron Green Ash] This seedless, male cultivar has a uniform upright habit with an oval canopy. Fall color is a handsome orange-red. An unattractive ash flower gall (formed by mites) can develop on male flowers and persists into winter. Emerald Ash Borer is severely affecting all species of this genus. Damage can be prevented with the appropriate pesticide, but the treatment cost will eventually exceed replacement cost. Audio Recording AvailablePurdue Plant Doctor Available
Tree Indiana Native Audio Recording AvailableID That Tree Video AvailablePurdue Plant Doctor Available Fraxinus quadrangulata [Blue Ash] The Blue Ash earned its common name from the blue dye early Americans made from its inner bark, which contains a substance that turns blue when exposed to air. This tree is naturally found upland in dry, rocky limestone areas and is very drought-tolerant. As with all ashes, Fraxinus quadrangulata is extremely susceptible to the Emerald Ash Borer. Damage from this pest can be prevented with the imidacloprid soil drench method, but the annual treatment… Indiana NativeAudio Recording AvailableID That Tree Video AvailablePurdue Plant Doctor Available
Tree Audio Recording AvailablePurdue Plant Doctor Available Ginkgo biloba 'Autumn Gold' [Autumn Gold Ginkgo] The Ginkgo is a long-lived deciduous conifer and gymnosperm. It is frequently termed a "living fossil," as it is the only surviving member of a group of ancient plants with fossils dating back to 270 million years ago. 'Autumn Gold' is an all male, and therefore, fruitless cultivar that has outstanding golden yellow foliage in the fall. Picturesque, open branches. Audio Recording AvailablePurdue Plant Doctor Available
Tree Purdue Plant Doctor Available Ginkgo biloba 'Goldspire' [sold as Ginkgo Goldspire™] [Goldspire Ginkgo] Non-fruiting cultivar of Ginkgo, often thought of as highly ornamental. Purdue Plant Doctor Available
Tree Audio Recording AvailablePurdue Plant Doctor Available Ginkgo biloba 'Magyar' [Magyar Ginkgo] The Ginkgo is a long-lived deciduous conifer and gymnosperm. It is frequently termed a "living fossil," as it is the only surviving member of a group of ancient plants with fossils dating back to 270 million years ago. 'Magyar' is an all male, and therefore, fruitless cultivar that has a narrow, strongly upright habit. Audio Recording AvailablePurdue Plant Doctor Available
Tree Audio Recording AvailablePurdue Plant Doctor Available Ginkgo biloba 'PNI 2720' [sold as Princeton Sentry®] [Princeton Sentry Ginkgo] The Ginkgo is a long-lived deciduous conifer and gymnosperm. It is frequently termed a "living fossil," as it is the only surviving member of a group of ancient plants with fossils dating back to 270 million years ago. The Princeton Sentry Ginkgo is an all male, and therefore, fruitless cultivar that has a nearly colomnuar, narrow, upright habit. Audio Recording AvailablePurdue Plant Doctor Available
Tree Purdue Plant Doctor Available Gleditsia triacanthos 'Draves' [sold as Street Keeper®] [Street Keeper Honeylocust] 'Draves' is a cultivar with Popular for street use. It has a tight narrow form with a small canopy and dark green foliage. It also has a fine texture with yellow fall color. This tree will create some mess in the fall, but minor compared to other cultivars and other species of trees. Purdue Plant Doctor Available
Tree Purdue Plant Doctor Available Gleditsia triacanthos f. inermis 'Impcole' [sold as Imperial®] [Imperial Thornless Honeylocust] This rounded, compact, and low-fruiting cultivar has finely compound leaves that provide a pleasant, dappled shade in the summer. The thornless forma inermis is only sold in commerce, as the profuse thorns of the species type can be a liability. Mimosa webworm and locust mite are serious pests in the Midwest, and are becoming more serious (especially in areas tending toward monoculture). Can be controlled with spraying. Purdue Plant Doctor Available
Tree Audio Recording AvailablePurdue Plant Doctor Available Gleditsia triacanthos f. inermis 'Skycole' [sold as Skyline®] [Skyline Thornless Honeylocust] The Skyline Thornless Honeylocust is a nearly fruitless compact, pyramidal tree with a strongly upright habit and finely compound leaves that provide a pleasant, dappled shade in the summer. The thornless forma inermis is only sold in commerce, as the profuse thorns of the species type can be a liability. Mimosa webworm and locust mite are serious pests in the Midwest, and are becoming more serious (especially in areas tending toward monoculture). Can be controlled… Audio Recording AvailablePurdue Plant Doctor Available
Tree Audio Recording AvailablePurdue Plant Doctor Available Gleditsia triacanthos f. inermis [sold as Shademaster®] [Shademaster Thornless Honeylocust] The Shademaster Thornless Honeylocust is a popular cultivar that is nearly fruitless and has dark green, finely compound leaves on ascending branches that provide a pleasant, dappled shade in the summer. The thornless forma inermis is only sold in commerce, as the profuse thorns of the species type can be a liability. Mimosa webworm and locust mite are serious pests in the Midwest, and are becoming more serious (especially in areas tending toward monoculture). Can… Audio Recording AvailablePurdue Plant Doctor Available
Indiana Native
![Fraxinus pennsylvanica 'Cimmzam' [sold as Cimmaron®]](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/01/NAME-251-6-150x150.jpg)
![Ginkgo biloba 'Goldspire' [sold as Ginkgo Goldspire™]](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/12/NAME_22479-summer-habit-1-150x150.jpg)
![Ginkgo biloba 'PNI 2720' [sold as Princeton Sentry®]](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/01/NAME-262-6-150x150.jpg)
![Gleditsia triacanthos f. inermis 'Impcole' [sold as Imperial®]](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/01/NAME-21412-6-150x150.jpg)
![Gleditsia triacanthos f. inermis 'Skycole' [sold as Skyline®]](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/01/NAME-264-7-150x150.jpg)
![Gleditsia triacanthos f. inermis [sold as Shademaster®]](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/01/NAME-263-150x150.jpg)