The plant is known as the Hairy-leaved Triggerplant and was formally named as Stylidium armeria subsp. pilosifolium in the scientific journal Muelleria in June 2009. This is a very significant find, not least because it is the only known living thing (flora or fauna) that is endemic to the Macedon Range. The group made submissions (with staff from the Herbarium) and it now protected on the State Government's Flora and Fauna Guarantee Act. In August 2010, after an assessment of the plant's distribution by DSE, the plant was assessed using international standards (IUCN Red List criteria) and it appeared quite clear that the plant should be listed as Critically Endangered.