Brodiaea pallida - Hoover
Chinese Camp Brodiaea
Other Common Names: Chinese Camp brodiaea
Taxonomic Status: Accepted
Related ITIS Name(s): Brodiaea pallida Hoover (TSN 42816)
Unique Identifier: ELEMENT_GLOBAL.2.128359
Element Code: PMLIL0C0C0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Lily Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Monocotyledoneae Liliales Liliaceae Brodiaea
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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: Brodiaea pallida
Taxonomic Comments: Grows in association with 2 sympatric congeners and can hybridize with 1 of them (Keator 1993 as cited in USFWS 1994). Despite this, the species is considered stable (Blaine Rogers, Collumbia College, as cited in USFWS 1994).
Conservation Status
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NatureServe Status

Global Status: G1
Global Status Last Reviewed: 12Apr2016
Global Status Last Changed: 10Nov1983
Rounded Global Status: G1 - Critically Imperiled
Reasons: Known from a single streambed - an area less than 1 km long and only 3-6 m wide. There are about 1,600 individuals. Searches of potential habitat in other areas have failed to locate any additional plants. The single known population is threatened by impacts (hydrological and recreational) from nearby housing development, lack of regulatory mechanisms and by random events.
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): LT: Listed threatened (14Sep1998)
U.S. Fish & Wildlife Service Lead Region: R8 - California-Nevada

NatureServe Global Conservation Status Factors

Range Extent Comments: The entire range of this species is along a 0.5 mile stretch along an intermittent stream that is 3 to 6 meters wide (USFWS 1998)

Area of Occupancy:  
Area of Occupancy Comments: The entire range is scattered over an area of about 65 acres (USFWS 1998).

Number of Occurrences:  
Number of Occurrences Comments: Only two occurrences exists near Chinese Camp, California in Calaveras and Tuolumne counties (CNPS 2001, CNDDB 2003).

Population Size Comments: The number of genetic individuals is unknown because this species spreads by producing suckers and shoots (USFWS 1998). The number of ramets is estimated at around 10,000 individuals (CNDDB 2003).

Overall Threat Impact: Very high - medium
Overall Threat Impact Comments: A portion of one of the occurrences was destroyed in 1982 by construction and the remainder continues to be threatened by residential construction (CNPS 2001, CNDDB 2003). It is also threatened by inadequate regulatory mechanisms and by random events due to its narrow range (USFWS 1998). The immediacy of these threats has remained unchanged in the past 10-12 years (USFWS 1998). Other threats include grazing by cattle and goats, and fire breaks (CNDDB 2003).

Short-term Trend Comments: The occurrences of this species are reported to be increasing in numbers (CNDDB 2003)

Environmental Specificity Comments: Requires specific edaphic factors. Grows in overflow channels, seeps and springs in clay from serpentine soil (USFWS 1998).

Other NatureServe Conservation Status Information

Distribution
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Global Range: The entire range of this species is along a 0.5 mile stretch along an intermittent stream that is 3 to 6 meters wide (USFWS 1998)

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 Calaveras (06009), Tuolumne (06109)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
18 Upper Tuolumne (18040009)+, Upper Stanislaus (18040010)+, Rock Creek-French Camp Slough (18040051)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A perennial herb from an underground bulb. Leaves are narrow, fleshy, reaching 1-3 dm in height. Several to many lilac-colored flowers, each 2 cm across, bloom at the tip of the flowering stem in late May to early June.
Palustrine Habitat(s): TEMPORARY POOL
Terrestrial Habitat(s): Barrens, Grassland/herbaceous
Habitat Comments: In an old, intermittent (vernal) stream channel with a serpentine substrate. About 380 m elevation.
Valley and foothill grassland (vernal streambeds, serpentinite); elevation 385m (California Native Plant Society 2001)

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: 06Aug2003
NatureServe Conservation Status Factors Author: Maybury, K., rev. L. Oliver (2003)

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

  • California Native Plant Society (CNPS). 2001. Inventory of Rare and Endangered Plants of California (sixth edition). Rare Plant Scientific Advisory Committee, David P. Tibor, Convening Editor. California Native Plant Society. Sacramento, CA. x + 388pp.

  • Flora of North America Editorial Committee. 2002a. Flora of North America North of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York. xxvi + 723 pp.

  • 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.

  • U.S. Fish and Wildlife Service. 1994. Proposed endangered or threatened status for 10 plants from the foothills of the Sierra Nevada Mountains in California. Federal Register 59(191): 50540-50550.

  • U.S. Fish and Wildlife Service. 1998. Endangered and threatened wildlife and plants: withdrawal of proposed listing of two plants as endangered, and four plants as threatened from the foothills of the Sierra Nevada Mountains in California. Federal Register 63(177):49065-49075.

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