Charpentiera densiflora - Sohmer
Papala
Taxonomic Status: Accepted
Related ITIS Name(s): Charpentiera densiflora Sohmer (TSN 20788)
Unique Identifier: ELEMENT_GLOBAL.2.161069
Element Code: PDAMA08010
Informal Taxonomy: Plants, Vascular - Flowering Plants - Amaranth Family
Image 117742

© C. H. Lamoreux

 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Caryophyllales Amaranthaceae Charpentiera
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Charpentiera densiflora
Taxonomic Comments: Genus found in Hawaiian, Austral & Cook Islands. Species endemic to Na Pali Coast, Kauai. This species hybridizes with C. elliptica where sympatric.
Conservation Status
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NatureServe Status

Global Status: G1
Global Status Last Reviewed: 24Oct2007
Global Status Last Changed: 07Aug1990
Rounded Global Status: G1 - Critically Imperiled
Reasons: Charpentiera densiflora occurs only on the island of Kauai in the state of Hawaii. It is narrowly endemic to the Na Pali Coast on the northwestern side of the island, in a series of valleys and gulches over a 6 km stretch. It occurs hala (Pandanus tectorius) forests in mesic gulches (Russell 2002). It is estimated that no more than 300 mature individuals remain (K. Wood pers. comm., 2000). The remaining plants are threatened by feral goats and pigs, and by the spread of alien plants. Also threatening the species are rats, erosion and fire.
Nation: United States
National Status: N1

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Hawaii (S1)

Other Statuses

U.S. Endangered Species Act (USESA): LE: Listed endangered (13Apr2010)
U.S. Fish & Wildlife Service Lead Region: R1 - Pacific

NatureServe Global Conservation Status Factors

Range Extent Comments: Charpentiera densiflora occurs only on the island of Kauai in the state of Hawaii. It is narrowly endemic to the Na Pali Coast on the northwestern side of the island, in a series of valleys and gulches over a 6 km stretch.

Area of Occupancy: 1-25 4-km2 grid cells
Area of Occupancy Comments:  

Number of Occurrences: 1 - 20
Number of Occurrences Comments: Total number of EOs are 9, of those 8 are known extant occurrences found only on Kauai. Observation records range from 1986-2007.

Population Size Comments: It is estimated that no more than 300 mature individuals remain (K. Wood pers. comm., 2000).

Number of Occurrences with Good Viability/Integrity: Unknown

Overall Threat Impact: Very high - high
Overall Threat Impact Comments: The remaining plants are threatened by feral goats and pigs, and by the spread of alien plants. This species is also threatened by flooding, which has increased in the area as a result of erosion caused by goats and from Hurricane Iniki in 1992 (Russell 2002).

Short-term Trend: Unknown
Short-term Trend Comments: The original range of this taxa was probably much larger (Russell 2002). The dry and mesic habitats of this taxa were damaged in the past by goats, and these effects are still apparent in the form of alien vegetation and erosion (Russell 2002).

Long-term Trend: Unknown

Environmental Specificity: Very narrow to moderate.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Charpentiera densiflora occurs only on the island of Kauai in the state of Hawaii. It is narrowly endemic to the Na Pali Coast on the northwestern side of the island, in a series of valleys and gulches over a 6 km stretch.

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States HI

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
HI Kauai (15007)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
20 Kauai (20070000)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: Trees up to 12 m tall. Leaves coriaceous, elliptic to subovate, 13-40 cm long. Panicles 22-48 cm long, with 9-32 primary branches 3.5-15 cm long. Each primary branch with 20-100 flowers.
Terrestrial Habitat(s): Forest - Hardwood, Forest/Woodland
Habitat Comments: Moist forests, especially in gulch bottoms.
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 29Oct2007
NatureServe Conservation Status Factors Author: J. Lau, rev. A. Olivero (2003), rev. D. Matsuwaki (2007)

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Russell, C. 2002. February-last update. Candidate and Listing Priority Assignment Form: Charpentiera densiflora. U.S. Fish and Wildlife Service, Endangered Species Program. Online. Available: http://ecos.fws.gov/tess/candforms_pdf/r1/chaden.pdf. Accessed 2003, February 21.

  • Sohmer, S.H. 1972. Revision of the genus Charpentiera (Amaranthaceae). Brittonia 24:283-312.

  • Wagner, W.L., D.R. Herbst, and S.H. Sohmer. 1990. Manual of the flowering plants of Hawaii. Univ. Hawaii Press and Bishop Museum Press, Honolulu. 1853 pp.

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