Holodiscus glabrescens var. dumosus (Nutt.) Maxim. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rosaceae genus Holodiscus species Holodiscus australis Name Homonyms Holodiscus glabrescens var. dumosus (Nutt.) Maxim. ex Coult. Holodiscus glabrescens var. dumosus (Nutt.) Maxim.