Albizzia julibrissin, persian silk tree! Note the PINK flowers! M. hostilis has WHITE flowers!
Both species are highly invasive, but you are FAR more likely to find an A. julibrissin in the USA than a M. hostilis, which ranges from south america to central mexico, usually.
I think what you have there is Albizzia Julibrissin, i.e. persian silk tree! It is only distantly related to Mimosa Hostilis, which has purely white flowers and thorns.
Not that Albizzia isn't magic! She's beautiful and contains novel compounds with apparent antidepressant effects via 5HT1A rec...
Albizzia julibrissin, persian silk tree! Note the PINK flowers! M. hostilis has WHITE flowers!
Both species are highly invasive, but you are FAR more likely to find an A. julibrissin in the USA than a M. hostilis, which ranges from south america to central mexico, usually.