CPC Plant Profile: Amargosa Niterwort
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Plant Profile

Amargosa Niterwort (Nitrophila mohavensis)

Image of Nitrophila mohavensis Photo Credit: Wikipedia
Description
  • Global Rank: G1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Amaranthaceae
  • State: CA, NV
  • Nature Serve ID: 133016
  • Date Inducted in National Collection: 09/23/2021

This member of the Chenopodiaceae family occupies the most localized habitat of all plant species endemic to Ash Meadows. Its habitats are limited to highly alkaline, moist, salt-encrusted clay soils. It is the only species to occupy these specific areas, and will not reestablish where the salty soil crust has been disturbed. N. mohavensis is a small, 4 inch tall, rhizomatous perennial forb with small inconspicuous pink flowers. Flowering time is in late spring.

Participating Institutions
Updates
  • 09/01/2020
  • Orthodox Seed Banking

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 2 accessions of Nitrophila mohavensis in orthodox seed collection. There are as many as 61 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

  • 08/05/2020
  • Seed Collection

Based on an August 2020 extract of the California Plant Rescue Database, California Botanic Garden has collected 2 seed accessions of Nitrophila mohavensis from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 64 maternal plants

Nature Serve Biotics
  • 05/02/2017

Nitrophila mohavensis is known from five total occurrences in Inyo County, California and Nye county, Nevada. It is severely threatened by water diversion and habitat alteration. Nearby mining activity also poses a threat to this taxon.

Rita Dodge and Sarah Kulpa
  • 01/01/2010

Habitat destruction from road construction, trampling by wild horses, off-road vehicles, invasive species, and ground and surface water pumping.

Rita Dodge and Sarah Kulpa
  • 01/01/2010

58,292 above ground ramets in Ash Meadows, NV. Unknown number in California.

Rita Dodge and Sarah Kulpa
  • 01/01/2010

Not Available

Rita Dodge and Sarah Kulpa
  • 01/01/2010

Some protection provided by the National Wildlife Refuge and TNC owned property.

Rita Dodge and Sarah Kulpa
  • 01/01/2010

Ex-situ conservation

Rita Dodge and Sarah Kulpa
  • 01/01/2010

Species is not currently part of an ex-situ collection. This is a high priority for the USFWS.

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Photos
Nomenclature
Taxon Nitrophila mohavensis
Authority Munz & J.C. Roos
Family Amaranthaceae
CPC Number 2957
ITIS 20704
USDA NIMO
Common Names Amargosa Niterwort
Associated Scientific Names Nitrophila mohavensis
Distribution Ash Meadows National wildlife Refuge in Nye Co. Nevada, occupying 21.4 acres. Also found in Inyo county California on a total of <1 acre.
State Rank
State State Rank
California S1
Nevada S1
Habitat

Undisturbed, highly alkaline, moist, salt-encrusted clay soils. The amount, distribution, and suitability of N. mohavensis habitat are dependent on both surface and subsurface hydrologic features.

Ecological Relationships

N. mohavensis is visited by an ant, which may be significantly important to its sexual reproduction.

Pollinators
Common Name Name in Text Association Type Source InteractionID

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