The goal of this activity is to introduce students to herbarium specimens and why they are an important source of information. The emphasis of this activity is on examining the types of data that specimens provide and how this data can be used to answer questions in biology (e.g., species distributions, ecological interactions, genetics) and anthropology (ethnobotany). Students will explore these data by following the life of Ynés Mexía, an important botanical collector working at the turn of the 20th century. Students will study her specimens to identify the various types of data they contain.