![]() ![]() Fruit is single seeded in a twisted wing, up to 4.5 cm long, and sometimes it shows a reddish cast. Gray bark with short, vertical line-like ridges is distinctive. Gland tipped teeth occur at the base of the leaflets. Large, foul smelling, pinnate compound leaves and commonly a reddish petiole help to determine this species. Tree-of-Heaven bark – L & M Smooth Sumac – R Tree-of-Heaven seeds Tree-of-Heaven twigs showing buds, lenticels and leaf scars This is a field or woodland edge species. Reproducing by seeding and suckering, it aggressively colonizes open, sunny locations. With its fast growth and wide tolerance of growing conditions, Tree-of-Heaven was previously regarded as a desirable species. Tree-of-Heaven ( Ailanthus altissima) is a non-native, invasive, weed tree. Because of its suckering habit it out competes natives and can be challenging to eradicate.įollow MichiganNatureGuy on Facebook Posted in Michigan Trees | Tagged Black Locust, Robinia pseudoacacia | Leave a reply Tree-of-Heaven (Ailanthus altissima) It is often seen in natural areas in southern Michigan and along the shores of the Great Lakes. Black locust seedpods and bark Stand of Black locust along Lake Superior south shoreīlack Locust occurs throughout the state. Winter twigs have buds partly hidden under reddish-brown hairs. The racemes of white, fragrant flowers are pretty. Black Locust seedpods are smooth and resemble garden peapods. It is identified by its alternate, compound leaves that have entire (toothless) margins and twigs with a pair of spines at each node. Black locust leaves and spines Black locust winter twigs ![]() It spreads by seeds and can send out suckers, forming large stands. Trees planted in rows along the edge of a field often served as living fence posts. Planted to the north because its wood is used for fence posts, tool handles, and wheel hubs. Native south of Michigan, its range reaches into southern Ohio. Black Locust ( Robinia pseudoacacia) is a medium size tree. ![]()
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