 Three species of "Euphrasia" (a semi-parasitic, herbaceous flowering plant commonly known as eyebright) are found only in Tasman National Park.The rare Cape Pillar Sheoak is a shrub or small tree found only in the Tasman National Park where it is restricted to the Cape Pillar area of the Tasman Peninsula and to Tasman Island.Giant Kelp is locally extinct in Eaglehawk Neck since 2016 due to climate change, with Tasmania's remaining giant kelp forests predicted to disappear in the next five to ten years.