Botanical expeditions (sometimes called "Plant hunting") are scientific voyages designed to explore the flora of a particular region, either as a specific design or part of a larger expedition. A naturalist or botanist would be responsible for identification, description and collection of specimens. In some cases the plants might be collected by the person in the field, but described and named by a government sponsored scientist at a botanical garden or university. For example, species collected on the Lewis and Clark Expedition were described and named by Frederick Traugott Pursh.
While accounts of plant collection occur in antiquity, a scientific basis occurred during the Renaissance and was associated with the establishment of botanical gardens and the teaching of botany as a discipline. The practice of botanical expeditions reached a peak in the late 18th and during the 19th century with the systematic organisation of plants into taxonomic classifications. Plant collection has attracted a number of criticisms of exploitation and colonialism leading to the establishment of international regulations and safeguards.