Horticulture
Horticulture was the science or practice of plant cultivation, and included elements of both botany and agriculture. The area of horticulture that focused on flower breeding and cultivation was known as floriculture.

In 2372, Tuvok and Neelix found a shared interest in horticulture via breeding orchids; Tuvok, however, noted his interest was much more specific (being floriculture), whereas Neelix described his own interest in breeding orchids was for use in salads, adding, with "a touch of Baldoxic vinegar, pure heaven."  

Because of their combined "interests" in horticulture, Chakotay assigned them to be the away team's botanical surveyors, during their away mission on the Sky Spirit's homeworld. ()

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Botany
Academic disciplines