Potamogeton filiformis var. alpinus Blytt Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Alismatales family Potamogetonaceae genus Stuckenia species Stuckenia filiformis Name Homonyms Potamogeton filiformis var. alpinus (Blytt) Asch. & Graebn. Potamogeton filiformis var. alpinus (Blytt) Almq. Potamogeton filiformis f. alpinus (Blytt) Hagstr. Potamogeton filiformis var. alpinus Blytt