Juncus communis f. effusus (L.) Rouy, 1912 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Juncaceae genus Juncus species Juncus effusus Name Homonyms Juncus communis subsp. effusus (L.) Celak. Juncus communis var. effusus (L.) E.Mey. Juncus communis subsp. effusus Bonnier & Layens Juncus communis var. effusus (L.) Schltdl.