from previous session, there's people suggested using Brahms for botanical knowledge.
have anyone used this tools before?

Yes, I am also interested to know more.

BRAHMS is presented an information system for managing botanical and herbarium data. It needs to download a software. http://herbaria.plants.ox.ac.uk/bol/content/documentation/AboutBRAHMS2010.pdf
My understanding is that BRAHMS is neither a WIKI nor a tool for large public action.

It would be interesting if people using BRAHMS could tell us more about its functions and potential. There is currently a lack of online resources for plant identification.

yeah, I tried to instal but there is online sample database available.
I tried to load the sample but there is still error occured.

I found an phone apps but it seems ok
https://play.google.com/store/apps/details?id=com.bim.key.plantfamily198

Nice find ,
the application is even available here:
http://www.pathkey.org/key_d.php?datasetId=198

I am looking forward to develop a function on pericopsis where pictures of tree characters can be uploaded and linked to identified specimen.This would permit the construction of a collaborative identification key.