Databases are specialized library search tools that find info not generally available on the internet!
I suggest starting with the academic reference database Gale Virtual Reference Library/ Gale eBooks.
A search in GVRL of the keyword ethnobotany returned 44 academic encyclopedia articles.
How do you know which articles to read? Check:
In our sample search, the second article looks useful because:
Search the library database CQ Researcher for researched reports by writers on current topics in the news, including botany.
CQ Reports provide:
Science Databases have a range of source types.
Academic encyclopedias or reference books provide an overview of your topic and help you understand...