Yucca glauca var. mollis Engelm. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Asparagales family Asparagaceae genus Yucca species Yucca arkansana Name Homonyms Yucca glauca var. mollis Engelm. ex Branner & Coville Yucca glauca var. mollis Engelm.