Eremophila comprises more than 238 species endemic to Australia, with many more yet to be formally described. We sought to determine whether several putative new taxa within the Eremophila tietkensii species complex should be formally described as new species. Two of these taxa were morphologically and genetically distinct and were formally described. The recognition of these taxa will help inform their conservation prioritisation and management.

The study showed strong agreement with the author’s previous work that involved DNA sampling for a group of Australian grasses with a unique reproductive system. Both studies support recognition of a new classification for the group of grasses, namely for species, genera and subtribe, in an ascending order. The current study showed the importance of testing different hypotheses by examining the effect on results by using variations in the composition of the dataset and type of analysis.

The southern hemisphere Myosotis is a high priority for taxonomic revision as there are several unresolved taxonomic issues, plus many of its species and subspecies are Threatened or At Risk. This paper uses morphology, genetic data, and niche modelling to revise the taxonomy of the pygmy forget-me-not group (Myosotis) native to New Zealand and Chile. Three species are recognised in this group, one with two subspecies. This study is part of a larger research project of all southern hemisphere Myosotis.