Looking for help identifying sites in Oregon with Ailanthus altissima ( Tree of Heaven) presence. Will be using these sites to monitor for Spotted lanternfly - Lycorma delicatula an associated exotic invasive not yet found in Oregon.
Appearance
Ailanthus altissima is a rapidly growing, typically small tree up to 80 ft. (24.4 m) in height and 6 ft. (1.8 m) in diameter. It has large ...more ↓
Looking for help identifying sites in Oregon with Ailanthus altissima ( Tree of Heaven) presence. Will be using these sites to monitor for Spotted lanternfly - Lycorma delicatula an associated exotic invasive not yet found in Oregon.
Appearance
Ailanthus altissima is a rapidly growing, typically small tree up to 80 ft. (24.4 m) in height and 6 ft. (1.8 m) in diameter. It has large leaf scars on the twigs.
Foliage
Foliage is one of the best identifying characteristics for this species. The leaves are pinnately compound and 1-4 ft. (0.3-1.2 m) in length with 10-41 leaflets. Ailanthus altissima resembles native sumac and hickory species, but it is easily distinguished by the glandular, notched base on each leaflet. Flowers
Species is dioecious and flowering occurs in early summer when large clusters of yellow flowers develop above the foliage. FruitFruit produced on female plants are tan to reddish, single winged and can be wind or water-dispersed.
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Tree of Heaven (Ailanthus altissima) in Oregon
treehugger13
created this project on October 18, 2017
