Does soapbush produces soap?

I found clidemia hirta here. I was happy because i thought it was soap because it's English name is soapbush.
I tried to used as soap but no luck , i tried to boil water with leaves of soapbush but didnt generated any soap.

Does soapbush produces soap? How?
If no, why is it called soapbush?

Do You know any plant that can produce soap and can be planted in The Amazon jungle?

Cheers

R.

I have not a clue what soapbush is.

HOWEVER

Looking the plant up, it seems incredibly aggressive when planted and known to outcompete native plants in areas. I'd recommend trying to see if it is a native plant to you or not.

Nothing I can find indicates if and how to make soap out of it.

Here is an article by the University of Minnesota that refers to that plant:

Clidemia hirta — which have been shown to contain saponins, the active chemical in soap. Subjects’ hands were swabbed prior to and after washing with each treatment.

https://pubs.lib.umn.edu/index.php/phr/article/download/2988/2679/15992

In this thread:

The weeds I have used in chop and drop manner are Soapbush / Koster's curse (Clidemia hirta)

So it looks like it is useful for chop and drop.

https://permies.com/t/134887/Permaculture-Kerala-Quest-create-Edible#1056153