''Lysimachia scopulensis'' is a rare species of flowering plant in the family

Primulaceae The Primulaceae , commonly known as the primrose family (but not related to the evening primrose family), are a family of herbaceous and woody flowering plants including some favourite garden plants and wildflowers. Most are perennial though som ...

known by the common name shiny-leaf yellow loosestrife.USDA Plants Profile
/ref> It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state ...

, where there are two small populations on the island of Kauai.USFWS
Determination of Endangered Status for 48 Species on Kauai and Designation of Critical Habitat; Final Rule.
''Federal Register'' April 13, 2010. It was federally listed as an endangered species of the United States in 2010. This shrub was discovered in 1991 in Kalalau Valley on Kauai. It was described as a new species in 1997.Marr, K. L and B. A. Bohm. (1997)
A taxonomic revision of the endemic Hawaiian ''Lysimachia'' (Primulaceae) including three new species.
''Pac Sci'' 51(3) 254-87. It grows on cliffs.''Lysimachia scopulensis''.

The Nature Conservancy The Nature Conservancy (TNC) is a global environmental organization headquartered in Arlington, Virginia. it works via affiliates or branches in 79 countries and territories, as well as across every state in the US. Founded in 1951, The Nat ...

. This shrub has red or green branches up to 75 centimeters long. The closely spaced leaves are lance-shaped to nearly oval in shape and have curved tips. The leaves are dark green but the central vein and the petiole may be red in color. The flower has red petals each about a centimeter long. This species sometimes hybridizes with ''

Lysimachia glutinosa ''Lysimachia'' () is a genus consisting of 193 accepted species of flowering plants traditionally Taxonomy (biology), classified in the family Primulaceae. Based on a Molecular phylogeny, molecular phylogenetic study it was transferred to the f ...

''. The two populations of this rare plant contain no more than 30 individuals in total. The plant is threatened by the

invasion An invasion is a Offensive (military), military offensive in which large numbers of combatants of one geopolitics, geopolitical Legal entity, entity aggressively enter territory (country subdivision), territory owned by another such entity, gen ...

introduced species An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived ther ...

of plants and

feral goat The feral goat is the domestic goat (''Capra aegagrus hircus'') when it has become established in the wild. Feral goats occur in many parts of the world. Species Feral goats consist of many breeds of goats, all of which stem from the wild goat ...

References

scopulensis Endemic flora of Hawaii Biota of Kauai Plants described in 1997 {{Primulaceae-stub