floristics

[ flaw-ris-tiks, floh- ]
/ flɔˈrɪs tɪks, floʊ- /

noun (used with a singular verb)

the study of the distribution, number, types, and relationships of plant species in an area or areas.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for floristics

floristics

/ (flɒˈrɪstɪks) /

noun

(functioning as singular) the branch of botany concerned with the types, numbers, and distribution of plant species in a particular area
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012