Polygala asbestina var. rigens (Burchard) Harv. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fabales family Polygalaceae genus Polygala species Polygala rigens Name Homonyms Polygala asbestina var. rigens (Burchard) Harv. Polygala asbestina subsp. rigens (Burch.) Harv.