Manihot walkerae - Earth.com
manihot walkerae
12-22-2016

Manihot walkerae

Manihot walkerae 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 — Manihot walkerae 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.The fleshy, underground root stores water and nutrients, and produces new stems each year. which dies back during dry periods or following a freeze. The fleshy, underground root stores water and nutrients, and produces new stems each year. The plant has a dull almond odor caused by the presence of hydrogen cyanide in all parts of the plant.

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.Manihot walkerae, commonly known as Walker’s manihot, is a species of flowering plant in the spurge family, Euphorbiaceae, that is native to the Lower Rio Grande Valley of Texas in the United States and Tamaulipas in Mexico. The specific name honours amateur botanist Thelma Ratcliff Walker, who discovered the type specimen near Mission and La Joya, Texas in 1942.

Detailed information
Full Name: Walker's manioc (Manihot walkerae)
Where found: Wherever found
Critical Habitat:N/A
Species Group:Flowering Plants
Current listing status
Status Date Listed Lead Region Where Listed
Endangered 10/02/1991 Southwest Region (Region 2) Wherever found
  • States/US Territories in which the Walker's manioc, Wherever found is known to or is believed to occur: Texas
  • US Counties in which the Walker's manioc, Wherever found is known to or is believed to occur: View All
  • USFWS Refuges in which the Walker's manioc, Wherever found is known to occur: Lower Rio Grande Valley National Wildlife Refuge, Santa Ana National Wildlife Refuge
  • Countries in which the the Walker's manioc, Wherever found is known to occur: Mexico
  • Additional species information
Recovery
No critical habitat rules have been published for the Walker's manioc.
Date
Title
Plan Action Status
Plan Status
12/12/1993 Walker's Manioc (Manihot walkerae) Recovery Plan View Implementation Progress Final
Date
Title
Plan Action Status
Plan Status
12/12/1993 Walker's Manioc (Manihot walkerae) Recovery Plan View Implementation Progress Final
Date
Citation Page
Title
Document Type
04/15/2015 80 FR 20241 20243 Endangered and Threatened Wildlife and Plants; 5-Year Status Reviews of Black-Lace Cactus, Bone Cave Harvestman, Pima Pineapple Cactus, Texas Snowbells, and Walker’s Manioc in the Southwest Region (Notice of initiation of reviews; request for information.
  • Notice 5-year Review, Initiation
04/23/2007 72 FR 20134 20136 5-Year Reviews of 24 Southwestern Species
  • Notice 5-year Review, Initiation
Date
Title
06/04/2009 Walker's Manioc Completed 5-Yr Review
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