Overview
Distribution
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Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.
http://www.tropicos.org/Reference/1103
© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO 63110 USA
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Missouri Botanical Garden
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National Distribution
United States
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
Type of Residency: Year-round
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Global Range: Currently known from Maui, also historical occurrences from Mokuhooniki Islet (off Coast of East Molokai), Niihau, Kauai, Oahu, Lanai, and Hawaii.
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U.S.A. (HI)
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Ecology
Habitat
Comments: Dry coastal shrublands on consolidated calcareous sand dunes and thin basaltic soils.
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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: 1 - 5
Comments: 1 current (between 1982 and 1997) occurrence and 15 historical occurrences, one of which is destroyed.
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Conservation
Conservation Status
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: G1S1.2 This species has been recorded from the islands of Niihau, Kauai, Oahu, Molokai, Lanai and Hawaii. It is currently known only from Maui. Only about plants remain. Most of the remaining plants are in the suburbs of a major urban center on Maui. Portions of this population have been recently destroyed by development. Competition with alien plants also poses a threat.
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Status: Endangered
Date Listed: 05/16/1986
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 Scaevola coriacea, see its USFWS Species Profile
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Threats
Comments: Immediate threat to Waiehu population from loss of habitat due to housing development; other threats include vandalism, overcollection.
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Management
Biological Research Needs: Research population biology and ecology.
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Wikipedia
Scaevola coriacea
Scaevola coriacea, the Dwarf Naupaka, is a species of flowering plant in the Goodenia family, Goodeniaceae, that is endemic to Hawaii.
Description
Dwarf Naupaka is a low, flat-lying perennial herb. Its older stems are somewhat woody, and the succulent leaves are oval-shaped, relatively far apart, and smooth or somewhat scaly with rounded tips. Flowers occur in branched inflorescences from the point of leaf attachment in groups of one to three.[2]
Conservation
Today, Dwarf Naupaka exists only on Maui and two offshore islets. Historically, it could be found on six islands. The total population is less than 300 plants, making Dwarf Naupaka an endangered species.[2]
 | Wikimedia Commons has media related to: Scaevola coriacea |
References
- ^ "Scaevola coriacea Nutt.". Germplasm Resources Information Network. United States Department of Agriculture. 2009-03-16. http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?320040. Retrieved 2009-11-21.
- ^ a b "Scaevola coriacea ". CPC National Collection Plant Profiles. Center for Plant Conservation. 2008-01-29. http://www.centerforplantconservation.org/collection/CPC_ViewProfile.asp?CPCNum=3835. Retrieved 2009-11-21.
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Unreviewed
Names and Taxonomy
Taxonomy
Comments: GENUS FOUND IN AUSTRALIA, COASTS OF TROPICAL ASIA, AFRICA, AND POLYNESIA. ALTHOUGH THIS SPECIES HAS BEEN COLLECTED ON ALL OF THE MAJOR HAWAIIAN ISLANDS, THE EVIDENCE SUGGESTS THAT IT WAS NEVER WELL ESTABLISHED ON ANY BUT MAUI ISLAND.
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