They’re about 6 feet tall, growing at the edge of the woods. Western MI, half a mile from Lake Michigan in sandy soil.
Mullein. It’s non native to the US. In some parts of the US it’s considered invasive.
It's fascinating how in some parts of the US, like the west, people are concerned about Mullein behaving invasively while in others its not nearly as aggressive and is more likely to be thought of a medicinal plant.
Different climates, different aggression/destructive rate
Yup. A species kept well in check in one environment can take over and be destructive in another.
Is there anywhere where Chinese knotweed is just a casual interloper?
Its native range in Asia.
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