Arisaema ringens f. praecox (DeVriese) T.Koyama Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Alismatales family Araceae genus Arisaema species Arisaema ringens Name Homonyms Arisaema ringens var. praecox (de Vriese ex K.Koch) Engl. Arisaema ringens f. praecox (DeVriese) T.Koyama Arisaema ringens subsp. praecox (de Vriese ex K.Koch) Engl.