Thesium alpinum var. tenuifolium (Saut.) DC. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Santalales family Thesiaceae genus Thesium species Thesium alpinum Name Homonyms Thesium alpinum var. tenuifolium (Saut.) DC. Thesium alpinum var. tenuifolium W.D.J.Koch Thesium alpinum subsp. tenuifolium (Saut. ex W.D.J.Koch) Bonnier & Layens Thesium alpinum subsp. tenuifolium (Saut. ex W.D.J.Koch) O.Schwarz