Psychotria nervosa var. rufescens (Kunth) Steyerm. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Psychotria species Psychotria nervosa Name Homonyms Psychotria nervosa subsp. rufescens (Kunth) Steyerm. Psychotria nervosa var. rufescens (Kunth) Steyerm. Psychotria nervosa var. rufescens (Kunth) L.O.Williams