Overview

Distribution

Range Description

Schiedea kaalae is endemic to the Hawaiian Islands. It occurs only on the island of Oahu.
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National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Global Range: Species endemic to northwestern Koolau Mountains and Waianae Mountains, Oahu.

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Historic Range:
U.S.A. (HI)

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Physical Description

Diagnostic Description

Plants nearly acaulescent; stems, if present, 0.2-1.2(-2) dm long with leaves tufted at apex; leaves elliptic-oblanceolate to nearly spatulate, (8-)14-24 cm long. Oahu. (Wagner et al., 1990)

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Type Information

Isoneotype for Schiedea kaalae Wawra
Catalog Number: US 3262943
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: ; Status verified from secondary sources
Preparation: Pressed specimen
Collector(s): S. P. Perlman & J. Obata
Year Collected: 1987
Locality: Oahu: Puu Kaua, Ekahaui gulch, in subgulch of south side of Ekahanui., Honolulu, O`ahu, Hawaii, United States, Hawaiian Archipelago, Pacific Islands
Microhabitat: In Oahu diverse mesic forest.
Elevation (m): 671
  • Isoneotype: Wawra, H. 1873. Flora. 56: 175.; Wagner, W. L. & et al. 2005. Syst. Bot. Monogr. 72: 84.
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Isotype for Schiedea kaalae Wawra
Catalog Number: US 1704416
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: ; Status verified from secondary sources
Preparation: Pressed specimen
Collector(s): O. Degener & W. Bush
Year Collected: 1927
Locality: Waterfall, Hauula Valley., Honolulu, O`ahu, Hawaii, United States, Hawaiian Archipelago, Pacific Islands
  • Isotype: Sherff, E. E. 1943. Amer. J. Bot. 30: 607.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
A perennial with a woody base. Occurs in diverse mesic forest to perhaps wet forest on steep slopes in shaded sites, at an elevational range of 210 - 790 m. Gulch slopes, gulch bottoms and cliffs.

Systems
  • Terrestrial
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Comments: Diverse mesic forest to perhaps wet forest on steep slopes in shaded sites. Gulch slopes, gulch bottoms, and cliffs.

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Population Biology

Number of Occurrences

Note: For many non-migratory species, occurrences are roughly equivalent to populations.

Estimated Number of Occurrences: 6 - 20

Comments: Six current (between 1982 and 1997) and six historical occurrences.

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Schiedea kaalae

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Schiedea kaalae

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
CR
Critically Endangered

Red List Criteria
D

Version
3.1

Year Assessed
2003
  • Needs updating

Assessor/s
Bruegmann, M.M. & Caraway, V.

Reviewer/s
Maunder, M. (Plant Conservation Committee) & Pollock, C.M. (Red List Programme Office)

Contributor/s

Justification
Schiedea kaalae is endemic to Oahu, Hawaii. It has been recorded from the Waianae Mountains and the central windward portion of the Koolau Mountains. It is known from eight subpopulations, totaling 25–30 individuals. The species and its habitats are threatened by pigs, goats, and alien plants.
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National NatureServe Conservation Status

United States

Rounded National Status Rank: N1 - Critically Imperiled

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NatureServe Conservation Status

Rounded Global Status Rank: G1 - Critically Imperiled

Reasons: This species is endemic to Oahu. It has been recorded from the Waianae Mountains and the central windward portion of the Koolau Mountains. There are 6 currently verified occurrences, totaling fewer than 50 plants. The species and its habitats are threatened by pigs, goats, and alien plants.

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Current Listing Status Summary

Status: Endangered
Date Listed: 10/29/1991
Lead Region:   Pacific Region (Region 1) 
Where Listed:


Population detail:

Listing status: E

For most current information and documents related to the conservation status and management of Schiedea kaalae, see its USFWS Species Profile

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Population

Population Trend
Decreasing
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Threats

Major Threats
Threats include fire, competition from alien plant species (Christmas berry, Maui pamakani, huehue haole, Koster's curse, mosasses grass, and firetree), habitat degradation by feral pigs and goats, and predation by introduced slugs and snails.
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Comments: The species and its habitat are threatened by alien weeds, goats, and pigs.

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Management

Conservation Actions

Conservation Actions
This species is being successfully propagated at the National Tropical Botanical Garden, the Lyon Arboretum, and the Waimea Arboretum (S. Smith, G. Koob and D. Orr, pers. comms. 1997). Federally and state-listed as an endangered species.
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Biological Research Needs: Population biology and ecology.

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Wikipedia

Schiedea kaalae

Schiedea kaalae, known as Maʻoliʻoli in Hawaiian, is a species of flowering plant in the carnation family, Caryophyllaceae, that is endemic to the island of Oʻahu in Hawaii. It inhabits coastal mesic and mixed mesic forests at elevations of 210–790 m (690–2,590 ft) in the Koʻolau and Waiʻanae Ranges. It is threatened by habitat loss.[2]

References

  1. ^ Bruegmann, M.M. & Caraway, V. 2003. Schiedea kaalae. 2011 IUCN Red List of Threatened Species. Downloaded on 19 July 2011.
  2. ^ "Schiedea kaalae". CPC National Collection Plant Profiles. Center for Plant Conservation. 2010-03-04. http://www.centerforplantconservation.org/collection/CPC_ViewProfile.asp?CPCNum=3850. Retrieved 2011-07-19.


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Names and Taxonomy

Taxonomy

Comments: ENDEMIC GENUS OF 22 SPECIES. SPECIES ENDEMIC TO NORTHWESTERN KOOLAU MTS. & WAIANAE MTS. OF OAHU. VARIETIES NOT RECOGNIZED BY WAGNER ET AL.

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