The park includes one of only three remaining native stands of the Monterey Pine. A well-studied infestation is occurring in Monterey pine plantations in New Zealand. The study estimated a mixture of of Monterey pine, and of redwood/Douglas fir mix. Pitch canker is the most serious threat to the Monterey pine at the Ranch. Mycorrhizae with Monterey pine ("Pinus radiata") have also been described. The only tall trees were planted recently and include eucalyptus, Monterey pine and Monterey cypress. Exoteleia burkei, the Monterey pine shoot moth, is a moth of the family Gelechiidae. Examples of species include coulter pine, monterey pine, and bishop pine. The native Monterey Pine ecosystem is one of the rarest forest ecosystems in the world. Monterey pine, sycamore and ash are good for providing such shelter. Monterey pine roots will reach downward as far as physically permitted by subterranean conditions. Black Hill has a trail through the Monterey Pine ("Pinus radiata") trees in Flemings Forest. But, by far, the most common tree is the Pinus radiata Monterey pine. The Monterey pine ("Pinus radiata") was introduced to New Zealand in the 1850s.