Search / Plant Profile / Navarretia fossalis

Plant Profile

Spreading Navarretia (Navarretia fossalis)

This shot shows the end of a stem, featuring the flowers. Photo Credit: Mark Elvin

Global Rank: G2 - Imperiled
Legal Status: Federally Threatened
Family: Polemoniaceae
State: CA
Nature Serve ID: 151738
Lifeform: Forb/herb
Date Inducted in National Collection:

Description:

Navarretia fossalis is an annual herb found in vernal pools and other shallow freshwater depressions in northwestern Baja, California (USFW 1994). The whitish lavender flowers are arranged in flattened clusters, bloom from April to June and produce two celled capsules of reddish brown seeds (Wiggins 1980).

Where is Spreading Navarretia (Navarretia fossalis) located in the wild?

Habitat:

Found in vernal pool and swale habitats, typically with Psilocarphus brevissimus. (Reiser 1994)

Distribution:

From northwestern Los Angelos County and western Riverside County south, through coastal San Diego County to San Quentin in northwestern Baja California, Mexico. (USFWS 1998)

States & Provinces:

Spreading Navarretia can be found in California

Which CPC Partners conserve Spreading Navarretia (Navarretia fossalis)?

California Botanic Garden

Not Sponsored

Conservation Actions

Assigned 06/09/17

San Diego Zoo Wildlife Alliance

Not Sponsored

Conservation Actions

Assigned 06/09/17

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

09/01/2020

Based on an September 2020 extract of the California Plant Rescue Database, San Diego Zoo Global holds 4 accessions of Navarretia fossalis in orthodox seed collection. There are as many as 149192 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

09/01/2020

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 6 accessions of Navarretia fossalis in orthodox seed collection. There are as many as 1708702 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

08/05/2020

Based on an August 2020 extract of the California Plant Rescue Database, San Diego Zoo Global has collected 4 seed accessions of Navarretia fossalis from 4 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 220 maternal plants

08/05/2020

Based on an August 2020 extract of the California Plant Rescue Database, California Botanic Garden has collected 4 seed accessions of Navarretia fossalis from 4 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 91 maternal plants

Nature Serve Biotics

05/02/2017

Known from southern California and adjacent Mexico, from northwestern Los Angeles County and western Riverside County south through coastal San Diego County to northwestern Baja California. In California, less than 20 occurences are believed extant and very few are presumed to remain in Mexico. Recent reporting on loss of populations is needed. Over half of known California occurrences are clustered at three general locations. This species' vernal pool habitats have been largely eliminated or severely disturbed in this region due to intensive conversion to agriculture and urbanization. The remaining habitat is subject to numerous threats, including ongoing agricultural or urban development, alteration of hydrology and floodplain dynamics, competition from non-native plants, road and pipeline construction, off-road vehicles, trampling by livestock, and weed abatement and fire suppression practices.

01/01/2010

Threats include agriculture, fragmentation, grazing and urbanization.

01/01/2010

Fewer than 30 populations exist in the United States, a few of which contain hundreds of thousands of plants during wet years, but the majority of which contain fewer than 1,000 individuals. (USFWS 1998)

01/01/2010

None known.

01/01/2010

In 1999, the Western Riverside County prepared a Multiple Species Habitat Conservation Plan for: The County of Riverside Transportation and Land Management Agency. The plan includes designating larger areas for species/habitat protection and also species analyses. (Dudeck and Associates Inc. 1999)

01/01/2010

Population monitoring and general ecology would be useful in conservation efforts.