 The remaining priority species are "Chthonocephalus tomentellus", which is rated Priority Two under the Department of Environment and Conservation's Declared Rare and Priority Flora List; "Calocephalus aervoides" and "Galium migrans", both Priority Three; and "Lepidium puberulum", Priority Four.Ninety-five exotic species from 29 families have been recorded.In general, islands that have or had human settlements are the weediest.