Ailanthus altissima
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Ailanthus altissima, commonly known as tree of heaven or ailanthus tree, is a deciduous tree in the quassia family. It is native to northeast, central China, and Taiwan. Unlike other members of the ge
Götterbaum
Immature seeds on a female tree
Resprouting after herbicide use
Ailanthus altissima (at left and far right) on Chouteau Avenue in St. Louis, Missouri in 1866
Noxious weed
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A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is harmful to agricultural or horticultural crops, nat
Ailanthus altissima
…heights of 15 metres (50 ft) in 25 years. While the species rarely lives more than 50 years, some specimens exceed 100 years of age. It is considered a noxious weed and vigorous invasive species, and one of the worst invasive plant species in Europe and North America. In 21st-century North America, the invasiveness…
A mature cotton thistle, an invasive weed in Australia
The alga Caulerpa taxifolia is a noxious marine weed nicknamed killer algae. This is a picture of it invading a native plant bed.
This is a parasitic noxious weed, Striga gesnerioides, the cowpea witchweed.
This is a terrestrial noxious weed, Drymaria arenarioides commonly called Lightning weed. It is sometimes confused with daisies.