Callitriche microcarpa Engelm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Lamiales family Plantaginaceae genus Callitriche species Callitriche occidentalis Name Homonyms Callitriche microcarpa Engelm. ex Hegelm. Callitriche microcarpa Engelm.