were then noted as rare or vulnerable, including Prasophyllum pallidum (pale leek-orchid). The park has significant stands of pink gums (Eucalyptus fasciculosa) and long-leafed box (Eucalyptus goniocalyx). button daisy, pussy tail (Ptilotus macrocephalus), needlebush (Hakea sericea), silky guinea flower (Hibbertia sericea) and black rapier sedge (Lepidosperma carphoides) are common. black-boys (Xanthorrhoea), hop bush (Dodonaea viscosa ssp. spatulata) and tea-tree form the understory in parts of the park. The area around the ruins of Newman's Nursery is noted for its spring orchid display. Quarry floors have large plants typical of much of the Mount Lofty Ranges. Golden wattle (Acacia pycnantha) and drooping sheoak (Allocasuarina verticillata), as well as red gums (Eucalyptus camaldulensis), native pine (Callitris preissii) and blue gum (Eucalyptus leucoxylon) are common. Invasive weeds are prevalent in, and damaging to, the park. Species common in other formerly occupied parts of the foothills are also common in the park. Of significant concern, largely for their impact on native flora, are bridal creeper (Asparagus asparagoides), boneseed (Chrysanthemoides monilifera), artichoke thistle (Cynara cardunculus), varieties of broom, Spanish heath (Erica lusitanica), fennel (Foeniculum vulgare), olives, blackberries, common gorse (Ulex europaeus) and dog rose (Rosa canina). In July 2001, Phytophthora cinnamomi, a significant cause of plant disease in the Adelaide Hills, was found in the park. Mechanical countermeasures, in the form of boot scrubbing stations, have been introduced to control its spread. The concept plan identified 145 species of birds as either known or expected to be found in the park. By 2006, 98 species had been recorded in the park's area, though not all specifically within the park's boundaries. Of the park's insects, seven species were found to be largely confined by its boundaries, with little presence in the rest of Adelaide. Their presence was unusual, as they were regarded as arid zone species. Approximately 35 reptile and amphibian species have been recorded within Anstey Hill park. Fauna in the park includes western grey kangaroo, common ringtail possum, common brushtail possum, short-beaked echidna, Gould's wattled bat, chocolate wattled bat, little forest bat, white-striped free-tailed bat and the lesser long-eared bat. Koalas are present, though they are not native to the area, having been deliberately introduced to the Adelaide hills. Foreign animals are also found, in common with much of Adelaide. While red foxes, cats, European rabbits, black rats, house mice and European hares are seen, there has been no systemic recording of alien fauna