Threadleaf Loosestrife / Center For Plant Conservation
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Plant Profile

Threadleaf Loosestrife (Lysimachia filifolia)

  • Global Rank: G1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Primulaceae
  • State: HI
  • Nature Serve ID: 133687
  • Lifeform: Shrub
  • Date Inducted in National Collection:

small shrub

Where is Threadleaf Loosestrife (Lysimachia filifolia) located in the wild?


mossy banks at the base of cliff faces within waterfalls along streams in lowland wet forests



States & Provinces:

Threadleaf Loosestrife can be found in Hawaii

Which CPC Partners conserve Threadleaf Loosestrife (Lysimachia filifolia)?

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

  • 01/01/2010

major threat is competition with alien plants natural disturbances stochastic extinction

  • 01/01/2010

12 individuals in 1 population on Kauai 150-200 individuals total in 3 populations on Oahu 3 colonies totaling 76 individuals (Kauai) Oahu population contains ca. 150-200 individuals if the Olokele population still exists, there are 2 populations on Kauai

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Taxon Lysimachia filifolia
Authority C. Forbes & Lydgate
Family Primulaceae
CPC Number 2752
ITIS 24004
Duration Perennial
Common Names Thread-leaved Loosestrife | Wailua River yellow loosestrife
Associated Scientific Names Lysimachia filifolia | Lysimachia waiaholeensis | Lysimachia funkiae
Distribution NA
State Rank
State State Rank
Hawaii S1
Ecological Relationships


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