Regularity: Regularly occurring
Global Range: Current range: Waianae Mountains of Oahu. Historically no additional range.
Sepals 4; leaf apex acuminate, acute, or sometimes submucronate; peduncles 2.3-3.5 cm long, inflorescences open. Oahu. (Wagner et al., 1990)
Catalog Number: US 10261
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Status verified from secondary sources
Preparation: Pressed specimen
Collector(s): H. Mann & W. T. Brigham
Locality: Kaala Mts., Oahu., Honolulu, O`ahu, Hawaii, United States, Hawaiian Archipelago, Pacific Islands
- Isotype: Mann, A. 1866. Proc. Boston Soc. Nat. Hist. 10: 312.
Comments: Slopes or ridges in wet forest or wetter portions of diverse mesic forest. Also found in drier forests.
Habitat and Ecology
Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 1 - 5
Comments: Two current (between 1982 and 1997) and four historical occurrences.
Life History and Behavior
Molecular Biology and Genetics
Barcode data: Schiedea trinervis
Statistics of barcoding coverage: Schiedea trinervis
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
National NatureServe Conservation Status
Rounded National Status Rank: N1 - Critically Imperiled
NatureServe Conservation Status
Rounded Global Status Rank: G1 - Critically Imperiled
Reasons: Narrowly endemic to two adjacent peaks in the northern Waianae Mountains of Oahu. The three currently known populations contain a total of fewer than 40 plants. The primary threats to the species are feral pigs and alien plants.
IUCN Red List Assessment
Red List Category
Red List Criteria
Comments: Threats include alien vegetation and trampling from feral animals (especially pigs) and humans, and overcollection.
Biological Research Needs: Population biology and ecology.
Alsinidendron trinerve (also called Three Nerved Alsinidendron) is a species of flowering plant in the carnation family, Caryophyllaceae, that is endemic to island of Oʻahu in Hawaii. It is a subshrub, reaching a height of 30–80 cm (12–31 in).
Three-Nerved Alsinidendron inhabits mixed mesic and wet forests on the slopes of the Waiʻanae Range at elevations of 900–1,230 m (2,950–4,040 ft). Associated plants include pilo (Coprosma spp.), ʻapeʻape (Gunnera petaloidea), ʻalani (Melicope spp.), hāpuʻu (Cibotium spp.), hame (Antidesma platyphyllum), and māmaki (Pipturus albidus). It is threatened by habitat loss.
- Bruegmann, M.M. & Caraway, V. (2003). "Alsinidendron trinerve". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 31 January 2014.
- "Alsinidendron trinerve". CPC National Collection Plant Profiles. Center for Plant Conservation. 2008-07-22. Retrieved 2009-11-16.
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Names and Taxonomy
Comments: ENDEMIC GENUS OF 4 SPECIES, SPECIES ENDEMIC TO WAIANAE MTS OF OAHU.
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