Sphaeropteris robusta var. norfolkiana (Laing) Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Cyatheales family Cyatheaceae genus Sphaeropteris species Sphaeropteris robusta Name Homonyms Sphaeropteris robusta var. norfolkiana (Laing)