Black Locust can produce sprouts out of its root system, but from what I've read a single organism can cover up to 1ha, and the sprouts become independent eventually, so not exactly the same.
They are also wicked with thorns when young. Someone planted a few in the 70s around here (Pine Bush reserve in Upstate NY), and they won't go away. They thrive in the pine bush and steal from the native environment. Prescribed burns help on the reserve bits, but on the private properties surrounding it is a nightmare. The amount of scars I have from these invasive trees' thorns is nuts.