Suaeda californica - S. Wats.
California Sea-blite
Other English Common Names: Broom Seepweed
Other Common Names: California seablite
Taxonomic Status: Accepted
Related ITIS Name(s): Suaeda californica S. Wats. (TSN 20664)
Unique Identifier: ELEMENT_GLOBAL.2.137926
Element Code: PDCHE0P020
Informal Taxonomy: Plants, Vascular - Flowering Plants - Goosefoot Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Caryophyllales Chenopodiaceae Suaeda
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Suaeda californica
Conservation Status
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NatureServe Status

Global Status: G1
Global Status Last Reviewed: 18Jul2003
Global Status Last Changed: 07Jul1993
Rounded Global Status: G1 - Critically Imperiled
Reasons: The only known extant plants are discontinuously distributed in a narrow intertidal band around Morro Bay in San Luis Obispo County, California. Historically, the species once occured in the San Francisco Bay area but habitat there has long-since been urbanized. Potential habitat along the central California coast is extremely limited. The remaining plants are threatened by anything that alters the topographic gradient or hydrologic conditions of the marsh, including increased sedimentation of the Bay, dredging projects, bluff erosion, and recreation (California Department of Fish and Game 2000; Baldwin et al. 2003).
Nation: United States
National Status: N1

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States California (S1)

Other Statuses

U.S. Endangered Species Act (USESA): LE: Listed endangered (15Dec1994)
U.S. Fish & Wildlife Service Lead Region: R8 - California-Nevada

NatureServe Global Conservation Status Factors

Range Extent Comments: Extirpated from the San Francisco Bay area; now known only from Morro Bay, San Luis Obispo County. May have once occured in Sonoma County as well (Skinner and Pavlik 1994). Does NOT occur in southern California or Baja California - plants of these areas are referable to S. esteroa &/or S. taxifolia (Skinner and Pavlik 1994, USFES 1994).

Population Size Comments: < 500 genetic individuals estimated by McLeod (1991) as cited in USFWS 1994.

Overall Threat Impact: Very high - medium
Overall Threat Impact Comments: The foreseeable threat with the greatest impact is habitat degradation/loss. Suaeda californica is threatened by anything that alters the topographic gradient or hydrologic conditions of the marsh, including increased sedimentation of the Bay, dredging projects, bluff erosion, and recreation (California Department of Fish and Game 2000; Baldwin et al. 2003). The plant's restricted range and limited number of individuals also threaten it with extinction due to random events (USFWS 1994).


Other NatureServe Conservation Status Information

Distribution
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Global Range: Extirpated from the San Francisco Bay area; now known only from Morro Bay, San Luis Obispo County. May have once occured in Sonoma County as well (Skinner and Pavlik 1994). Does NOT occur in southern California or Baja California - plants of these areas are referable to S. esteroa &/or S. taxifolia (Skinner and Pavlik 1994, USFES 1994).

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States CA

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
CA Alameda (06001), Contra Costa (06013)*, San Francisco (06075), San Luis Obispo (06079), Santa Clara (06085)*
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
18 San Pablo Bay (18050002)+, San Francisco Bay (18050004)+, Central Coastal (18060006)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: An evergreen shrub that forms low mounds, leafy with fleshy, narrow leaves, each 5-35 mm long. The tiny flowers (2-3 mm across) are borne July-October.
Estuarine Habitat(s): Herbaceous wetland
Habitat Comments: Restricted to the upper intertidal zone of a coastal salt marsh along the perimeter of a bay.
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 11Jul1997
NatureServe Conservation Status Factors Author: Maybury, K.

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Baldwin, B.G., S. Boyd, B.J. Ertter, R.W. Patterson, T.J. Rosatti and D.H. Wilken. Jepson Flora Project. Regents of the University of California. Online. Available: http://ucjeps.berkeley.edu/jepson_flora_project.html. Accessed 2003.

  • California Department of Fish and Game. 2000. Natural Diversity Database (RareFind 2), Version 2.1.2, January 25, 2000. Downloaded in 2003.

  • Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Skinner, M.W., and B.M. Pavlik, eds. 1994. California Native Plant Society's Inventory of rare and endangered vascular plants of California. 5th edition. California Native Plant Society, Sacramento. 338 pp.

  • U.S. Fish and Wildlife Service. 1994. Endangered or threatened status for five plants and the Morro shoulderband snail from western San Luis Obispo County, California. Federal Register 59(240): 64613-64623.

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