Ho`awa (Pittosporum napaliense)

Listing Status: Endangered

Where Listed: WHEREVER FOUND

General Information

Pittosporum napaliense, a member of the Pittosporaceae (pittosporum) family, is a small tree 5 to 11 m (16 to 36 ft) tall with young parts and inflorescences covered in pale brown pubescence. The glabrous (smooth) leaves are obovate with entire margins and slightly impressed veins on the upper surface. The cream colored, tubular flowers are unisexual and occur in groups of 8 to 20 in axillary or terminal inflorescences. Capsules are oblong-ovoid, 17 to 19 mm (0.7 in) long, and glabrous at maturity. Seeds are black to reddish-black, 5 to 7 mm long (0.2 to 0.3 in).
Current Listing Status Summary

» Range Information

Current Range
Last Updated: 08-13-2021 - Wherever found
Zoom in! Some species' locations may be small and hard to see from a wide perspective. To narrow-in on locations, check the state and county lists (below) and then use the zoom tool.
Want the FWS's current range for all species? Click here to download a zip file containing all individual shapefiles and metadata for all species.
* For consultation needs do not use only this current range map, please use IPaC.

Current range maps are only shown within the jurisdictional boundaries of the United States of America. The species may also occur outside this region.

  • 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: 

» Candidate Information

No Candidate information available for this species.

No Candidate Assessments available for this species.

Candidate Notice of Review Documents

No Uplisting Documents currently available for this species.

» Federal Register Documents

Federal Register Documents

» 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.

» Conservation Plans

No Conservation Plans currently available for this species.

» Petitions

» Biological Opinions

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

» Life History

Habitat Requirements

Pittosporum napaliense occurs in Pandanus tectorius (hala) and Diospyros sandwicensis (lama)-Metrosideros spp. (ohia) lowland mesic forest, at 122 to 640 m (400 to 2,100 ft). Associated native species include Alyxia stellata (maile), Chrysodracon spp. (hala pepe), Elaeocarpus bifidus (kalia), Freycinetia arborea (ie ie), Nestigis sandwicensis (olopua), Ochrosia kauaiensis (holei), Pritchardia napaliensis (loulu), Psychotria spp. (kopiko), Psydrax odorata (alahee), Rauvolfia sandwicensis (hao), Scaevola taccada (naupaka), and Xylosma hawaiiense (maua).

Movement / Home Range

Historically, Pittosporum napaliense was known from northwestern Kauai. Currently, this species occurs at Waiahuakua Valley, Hoolulu Valley, upper Kalalau Valley, with some individuals also observed at Hanakapiai below Pohakea, and in Limahuli Valley.

Reproductive Strategy

Most Hawaiian species of Pittosporum have functionally unisexual flowers. Pittosporum napaliense has been observed flowering in January, April, June, July, October, and November.

Other

Pittosporum napaliense may hybridize with P, kauaiense and P. glabrum in Limahuli Valley.

» 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." +

Loading...