conflicting information on Persian Silk Tree - Albizzia julibrissin - Mimosa

Hi guys! I have a question that has been bugging me for a while now. When I read Hemenway's(r.i.p.) Gaia's Garden, in the plant index in the back, he mentions that this Persian Silk Tree, which is a Nitrogen Fixer, is a great nurse plant for helping young plants and seedlings get their start. But, on wikipedia, this same plant species is noted as being an allelopath, inhibiting other plant growth.. This seems to conflict with Toby's description of it as a nurse plant. Does anyone know for sure!?

Thanks
-T

I have one in my side yard, and it has all sorts of things sprouting under it: oaks, blackberries, smilax, etc., so from that observation, I would call it a nurse tree.

Could you be looking at another species also known as a Silk Tree? Most of the species I know of are legumes which do make good nurse trees, but it is a popular common name. The one I see in my area is also called a mimosa https://dengarden.com/landscaping/Mimosa-trees-facts-information

Actually I just learned something. The end of that article talks about a ground cover also known as mimosa. Next time I see Mimosa strigillosa flowering in my yard, I think I need to gather some seeds to try using it as living mulch in my garden.