Ruppia maritima subsp. aculeata Hagstr. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Alismatales family Ruppiaceae genus Ruppia species Ruppia maritima Name Homonyms Ruppia maritima f. aculeata Hagstr. Ruppia maritima subsp. aculeata Hagstr.