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