Below are some categories of plant abundance to help plan collecting for future classes. If you're looking for all plants we can use that grow in a particular place, use this link and specify the location.

Abundant or very large plant (enough for essentially every student)
Moderately abundant or large plant (enough for every other student)
Uncommon (can only grab a few branches or combine with other areas)
Rare in this area (only use on site or don't use) less ↑