Cyperus trachysanthos • Earth.com
cyperus trachysanthos
12-22-2016

Cyperus trachysanthos

Cyperus trachysanthos 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 — Cyperus trachysanthos 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.

Cyperus trachysanthos is a rare species of sedge known by the common names pu`uka`a and sticky flatsedge. It is endemic to Hawaii, where it is known from Kauai and Oahu. It was known from NiihauMolokai and Lanai, but it has been extirpated from these islands.It is a federally listed endangered species of the United States.

This plant is a rhizomatous perennial flowering plant which produces clumps of stems up to about 45 centimeters in maximum height. There are plentiful hairlike green leaves which may be longer than the stems. The inflorescence is made up of a few heads of up to 30 spikelets each. The spikelet is about a centimeter long and has up to 20 yellow-brown flowers covered by yellow-brown to reddish glumes.The plant grows in wetland habitat such as seepsmudflats, and marshesHau (Hibiscus tiliaceus) is often found alongside the sedge. Generally, the habitat is seasonally dry.

Detailed information
Full Name: pu`uka`a (Cyperus trachysanthos)
Where found: Wherever found
Critical Habitat:N/A
Species Group:Flowering Plants
Current listing status
Status Date Listed Lead Region Where Listed
Endangered 10/10/1996 Pacific Region (Region 1) Wherever found
  • States/US Territories in which the pu`uka`a, Wherever found is known to or is believed to occur: Hawaii
  • US Counties in which the pu`uka`a, Wherever found is known to or is believed to occur: View All
Federal register documents
Date
Citation Page
Title
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
04/29/2008 73 FR 23264 23266 Initiation of 5-Year Status Reviews for 70 Species in Idaho, Montana, Oregon, Washington, and the Pacific Islands
06/17/2003 68 FR 36099 36148 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 (4 of 10)
06/17/2003 68 FR 36199 36248 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 (6 of 10)
06/17/2003 68 FR 35999 36048 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 (2 of 10)
06/17/2003 68 FR 36049 36098 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 (3 of 10)
Recovery
To learn more about critical habitat please see http://ecos.fws.gov/crithab
Date
Title
Plan Action Status
Plan Status
09/19/2002 Addendum to the Recovery Plan for Multi-Island Plants View Implementation Progress Final
07/10/1999 Recovery Plan for the Multi-Island Plants View Implementation Progress Final
Date
Title
Plan Action Status
Plan Status
09/19/2002 Addendum to the Recovery Plan for Multi-Island Plants View Implementation Progress Final
07/10/1999 Recovery Plan for the Multi-Island Plants View Implementation Progress Final
Date
Citation Page
Title
Document Type
11/24/2010 75 FR 71726 71729 5-Year Status Reviews of 58 Species in Washington, Oregon, California, and Hawaii
  • Notice 5-year Review, Initiation
04/29/2008 73 FR 23264 23266 Initiation of 5-Year Status Reviews for 70 Species in Idaho, Montana, Oregon, Washington, and the Pacific Islands
  • Notice 5-year Review, Initiation
12/26/2002 67 FR 78763 78765 Endangered and threatened wildlife and plants; designations of critical habitat for plant species from the island of oahu, hawaii; extension of comment period and notice of availability of draft economic analysis
  • Notice Doc. Availability
03/07/2001 66 FR 13691 13692 ETWP; Reopening of Comment Period and Notice of Availability of the Draft Economic Analysis for Proposed Critical Habitat for 76 Plants From the Islands of Kauai and Niihau, HI
  • Notice Doc. Availability
  • Notice Reopen Comment
Date
Title
08/19/2013 Cyperus trachysanthos 5-year review
08/27/2010 Pu'uka'a (Cyperus trachysanthos) 5 year review
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