Grewia optiva J.R.Drumm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malvales family Malvaceae genus Grewia species Grewia optiva Name Homonyms Grewia optiva J.R.Drumm. ex Burret Grewia optiva J.R.Drumm.