Species Profile for No common name(Hesperomannia arborescens)

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No common name (Hesperomannia arborescens)

Taxonomy:

View taxonomy in ITIS

Listing Status: Endangered

Where Listed: WHEREVER FOUND

General Information

Hesperomannia arborescens is a small shrubby tree of the Asteraceae (sunflower) family that stands 1.5 to 5 m (5 to 16 ft) tall. Its typically hairless leaves, 10 to 20 cm (4 to 8 in) long and 3 to 8 cm (1 to 3 in) wide, range from oval to lance-shaped and are about two to four times as long as they are wide. The flower heads, which are about 6 cm (2.4 in) long, are either erect or ascending, and grow singly or in clusters of 2 to 10. They grow on thick fuzzy stalks 4 to 15 mm (0.2 to 0.6 in) long and about 3 mm (0.1 in) in diameter. The involucre (set of bracts) that surrounds each flower head is between 2 and 3.5 cm (0.8 and 1.4 in) high, the longest individual bracts growing to 2.8 cm (1.1 in). The yellow to yellowish brown florets that comprise each head are about 2.4 to 3 cm (0.9 to 1.2 in) long and develop into 1.3 cm (0.5 in) long achenes (dry, one-seeded fruits) topped with yellowish brown or purple-tinged bristles.

Current Listing Status Summary

Show entries

Status	Date Listed	Lead Region	Where Listed
Endangered	03-28-1994	Pacific Region (Region 1)	Wherever found

Showing 1 to 1 of 1 entries

» Range Information

Current Range

Last Updated: 07-06-2021 - Wherever found

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Wherever found
Listing status: Endangered

States/US Territories in which this population is known to or is believed to occur: Hawaii
US Counties in which this population is known to or is believed to occur: View All

USFWS Refuges in which this population is known to occur:

State	County
Hawaii	Honolulu
Hawaii	Kalawao
Hawaii	Maui

» Candidate Information

No Candidate information available for this species.

No Candidate Assessments available for this species.

No Candidate Notice of Review Documents currently available for this species.

No Uplisting Documents currently available for this species.

» Federal Register Documents

Federal Register Documents

Show entries

Date	Citation Page	Title
06/11/2019	84 FR 27152 27154	Initiation of 5- Year Status Reviews for 91 Species in Oregon, Washington, Hawaii, and American Samoa
03/30/2016	81 FR 17789 18110	Designation and Nondesignation of Critical Habitat on Molokai, Lanai, Maui, and Kahoolawe for 135 Species; Final Rule
09/18/2012	77 FR 57647 57862	Endangered Status for 23 Species on Oahu and Designation of Critical Habitat for 124 Species; Final Rule
06/11/2012	77 FR 34464 34775	Listing 38 Species on Molokai, Lanai, and Maui as Endangered and Designating Critical Habitat on Molokai, Lanai, Maui, and Kahoolawe for 135 Species
08/02/2011	76 FR 46362 46594	Listing 23 Species on Oahu as Endangered and Designating Critical Habitat for 124 Species:Proposed rule.
11/24/2010	75 FR 71726 71729	5-Year Status Reviews of 58 Species in Washington, Oregon, California, and Hawaii
03/08/2007	72 FR 10547 10550	Initiation of 5-Year Reviews of 71 Species in Oregon, Hawaii, Commonwealth of the Northern Mariana Islands, and Territory of Guam
06/17/2003	68 FR 35950 36406	Endangered and threatened wildlife and plants; final designations or nondesignations of critical habitat for 101 plant species from the island of Oahu, HI; final rule
03/18/2003	68 FR 12982 13141	Endangered and threatened wildlife and plants; final designations and nondesignations of critical habitat for 42 plant species from the island of Molokai, HI; final rule
01/09/2003	68 FR 1220 1274	Endangered and threatened wildlife and plants; final deisngation of critical habitat for three plant species from the island of Lanai, Hawaii; Final rule

Showing 1 to 10 of 25 entries

» Species Status Assessments (SSAs)

Species Status Assessments (SSAs)

No Species Status Assessments (SSA's) are currently available for this species.

Special Rule Publications

No Special Rule Publications currently available for this species.

» Recovery

Species with Recovery Documents Data Explorer
Recovery Priority Number: 5

Current Recovery Plan(s)

Show entries

Date	Plan Stage	Recovery Plan	Implementation Status	SSAs/Biological Reports	Recovery Implementation Strategies
08/10/1998	Final	Recovery Plan for Oahu Plants	View Implementation Progress

Showing 1 to 1 of 1 entries

Date	Citation Page	Title	Document Type
06/11/2019	84 FR 27152 27154	Initiation of 5- Year Status Reviews for 91 Species in Oregon, Washington, Hawaii, and American Samoa	Five Year Review Notice, Information Solicitation
11/24/2010	75 FR 71726 71729	5-Year Status Reviews of 58 Species in Washington, Oregon, California, and Hawaii	Five Year Review Notice, Information Solicitation
03/08/2007	72 FR 10547 10550	Initiation of 5-Year Reviews of 71 Species in Oregon, Hawaii, Commonwealth of the Northern Mariana Islands, and Territory of Guam	Five Year Review Notice, Information Solicitation

Date	Title
08/12/2022	Hesperomannia arborescens 5-Year Review
08/07/2013	Hesperomannia arborescens 5-Year Review
04/07/2009	Hesperomannia arborescens 5-Year Review

» Critical Habitat

Critical Habitat Spatial Extents

Population(s)

Wherever found

Critical Habitat Documents

Show entries

Date	Citation Page	Title	Critical Habitat Shapefile	Document Type
03/30/2016	81 FR 17789 18110	Designation and Nondesignation of Critical Habitat on Molokai, Lanai, Maui, and Kahoolawe for 135 Species; Final Rule	Download	Final

Showing 1 to 1 of 1 entries

To learn more about critical habitat please see https://ecos.fws.gov/crithab

» Conservation Plans

No Conservation Plans currently available for this species.

» Petitions

No Petitions currently available for this species.

» Biological Opinions

To see all FWS Issued Biological Opinions please visit the BO Report.

» Life History

Habitat Requirements

Hesperomannia arborescens occurs on slopes or ridges in wet forest and scrub at 360 to 750 m (1,200 to 2,500 ft) with the associated native species Metrosideros spp. (ohia), Antidesma platyphyllum (hame), Psychotria spp. (kopiko), Syzygium sandwicensis (ohia ha), Wikstroemia spp. (akia), Nestegis sandwicensis (olopua), Dicranopteris linearis (uluhe), Kadua spp. (manono), and Melicope spp. (alani). The Molokai population occurs in Diospyros spp. (lama) and Metrosideros spp. mesic forest within the same elevational range.

Movement / Home Range

Hesperomannia arborescens is historically known from locations on three islands: Lanai, the Koolau mountains on Oahu, and Molokai. The species is now considered extirpated from Lanai. The taxonomic revision based on genetic studies at the University of Hawaii by Morden and Harbin (2013) classifies the Koolau mountain populations on Oahu as Hesperomannia swezeyi and those in the Waianae mountains of Oahu as H. oahuensis. Under this treatment, all individuals of Hesperomannia on west Maui, Molokai, and Lanai are considered H. arborescens, although these populations were listed as H. arbuscula.

Reproductive Strategy

Hesperomannia arborescens was observed in flower from April through June and fruiting in March. Pollen viability from one sample of H. arborescens was estimated at 98 percent, but fruiting heads are not frequently observed, and embryo viability has not been determined, but is assumed to be low. Since there are seedlings some years and not others, there is likely a decline in the pollinator for the taxon.

Other

Hesperomannia arborescens differs from other Hesperomannia species in having erect to ascending flower heads; thick flower head stalks; and usually hairless and relatively narrow leaves.

» Other Resources

NatureServe Explorer Species Reports-- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports-- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video." +