Phyllostegia glabra var. Santalum freycinetianum var. Tetramolopium remyi is a member of the sunflower family, and Viola lanaiensis is of the violet family. Abutilon eremitopetalum, Cyanea macrostegia ssp. Cytandra munroi and Santalum freycinetianum var.
Additional factors threaten certain individual species and are detailed in the recovery plan.
In the first part of the 20th century, the family of Charles Gay led the way to eradicating the hoofed animals that were destroying the island's vegetation and began to fence the summit forest. Cattle were completely removed from the island in 1950, and goats were eradicated in 1981. All nine of the Lanai plant clusters are protected under Federal and State laws. None at present time.