Actionbioscience (last mentioned in the September 20, 2002 Scout Report
) offers two lesson plans on ethnobotany and biodiversity based on an interview with Mark Plotkin, author of the popular book A Tale of a Shaman's Apprentice.
The lesson plans that accompany this interview can be found under Educator's Resources at the bottom of the page, along with numerous links to additional resources and related articles. The two lessons are available in one PDF document; the first intended for grades 9-12 in general and the second for more advanced courses. Each lesson plan is quite extensive, requiring several days to complete.