Phyllostegia warshaueri

Phyllostegia warshaueri is a rare species of flowering plant in the mint family known by the common name Laupahoehoe phyllostegia. It is endemic to Hawaii, where it is limited to the island of Hawaii.^[1] It is a federally listed endangered species of the United States.

Phyllostegia warshaueri
Conservation status
Critically Imperiled  (NatureServe)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Lamiaceae
Genus:	Phyllostegia
Species:	P. warshaueri
Binomial name
Phyllostegia warshaueri Wawra

This plant grows only on Mauna Kea and the Kohala Mountains of Hawaii, where its habitat is wet forests. There are four occurrences, for a total of under 20 individual plants. This liana can grow to 3 meters in length. It bears white flowers with pink upper lips.^[1]

The species is threatened by feral pigs, cattle, and introduced species of plants.^[1]