British spelling: a person who studies or collects plants; a botanist or plant enthusiast.
From 'botanise' plus the agent noun suffix '-er.' A person who performs the action of botanising, particularly in field study and collection.
A 'botaniser' is someone who loves getting muddy and wet hunting for rare plants in the field—they're the opposite of someone who just reads about plants in a lab. The term captures that adventurous spirit of field naturalists!
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