Isodendrion longifolium

Isodendrion longifolium NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports — ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Isodendrion longifolium is a rare species of flowering plant in the violet family known by the common names longleaf isodendrion and aupaka. It is endemic to Hawaii, where it is known from fewer than 1000 individuals on the islands of Kauai and Oahu.It is a federally listed threatened species of the United States.

This is a shrub growing 0.6 to 2 meters tall. It has lance-shaped, leathery leaves up to 30 centimeters long and produces fragrant purple flowers.

This shrub grows in moist and wet forest habitat.There are fewer than 50 individuals remaining on Oahu, and the plant is slightly more abundant on Kauai.Subordinate Taxa. This plant has no children Legal Status. Threatened and Endangered Information: This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists.

The plants’ habitat is threatened by feral ungulates including wild boars. Another threat is competition with non-native plant species.