Trichostema laxum var. rubisepalum (Elmer) Jeps. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Lamiales family Lamiaceae genus Trichostema species Trichostema rubisepalum Name Homonyms Trichostema laxum var. rubisepalum (Elmer) Jeps.