CPC National Collection Plant Profile
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CPC National Collection Plant Profile
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Eriastrum densifolium ssp. sanctorum
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Eriastrum densifolium ssp. sanctorum is Not Sponsored |
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Primary
custodian for this plant in the CPC National Collection of Endangered
Plants is: |
Rancho Santa Ana Botanic Garden contributed to this Plant Profile. |
| Eriastrum densifolium ssp. sanctorum | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| This endangered blue-flowered phlox species is restricted to sandy floodplain areas in Southern California and was listed as Federally Endangered in 1987. Remaining populations are threatened by flood control and competition with a non-native species, river cane (Arundo donax). In 1988, a preservation area was established by the U.S. Army Corps of Engineers in an undeveloped portion of land in San Bernardino National Forest that includes 309 hectares (764 acres) of suitable habitat for Eriastrum densifolium ssp. sanctorum. The biggest threat to this species is the construction of the Seven Oaks dam, which is currently in progress, which will substantially reduce the historic floodplain areas that this species lives on. This shrub can grow to one meter (3.3 feet) tall, with gray-green stems and leaves. It produces bright blue flowers that are up to 1.4 inches long that occur in flower heads with about 20 blossoms each. (USFWS 1986)
State Range
Distribution
Number Left
State/Area Protection
Ecological Relationships
Threats
Current Research Summary
Current Management Summary
Research Management Needs
Monitoring Efforts
Ex Situ Needs
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References |
Skinner, M.W.; Pavlik, B.M. 1997. Inventory of rare and endangered vascular plants of California: Electronic Inventory Update of 1994, 5th edition. Sacramento: California Native Plant Society. |
Kartesz, J.T. 1999. A synonymized checklist of the vascular flora of the U.S., Canada, and Greenland. In: Kartesz, J.T.; Meacham, C.A., editors. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden. Chapel Hill, NC. |
CDFG. (2002). California's Plants and Animals, Threatened and Endangered Plants. List and Species Accounts. California Department of Fish and Game, Habitat Conservation Planning Branch. http://www.dfg.ca.gov/hcpb/species/t_e_spp/teplant/teplanta.shtml. Accessed: 2002. |
Brunell, M.S.; Whitkus, R. 1997. RAPD marker variation in Eriastrum densifolium (Polemoniaceae): implications for subspecific delimitation and conservation. Systematic Botany. 22: 543-553. |
Brunell, M.S.; Whitkus, R. 1998. Assessment of morphological variation in Eriastrum densifolium (Polemoniaceae): implications for subspecific delimitation and conservation (with appendix). Systematic Botany. 23, 3: 351-368. |
Brunell, M.S.; Whitkus, R. 1999. Analysis of cross-compatibility in Eriastrum densifolium (Polemoniaceae). Plant Systematics and Evolution. 215: 241-254. |
Burk, J.H.; Jones, C.E.; Wheeler, C.E. 1989. New Information on the Rare Santa Ana River Woolly-Star. Fremontia. 17, 3: 20-21. |
Patterson, R.; Tanowitz, B.D. 1989. Evolutionary and geographic trends in adaptive wood anatomy in Eriastrum densifolium (Polemoniaceae). American Journal of Botany. 76, 5: 706-713. |
USFWS. 1986. 18 Plants Proposed for Listing Protection. Endangered Species Technical Bulletin. 11, 5: 1-13. |
USFWS. 1986. Proposed Endangered Status for Eriastrum densifolium ssp. sanctorum (Santa Ana River Woolly-star) & Centrostegia leptoceras (Slender-Horned Spineflower). Federal Register. 51, 68: 12160-12184. |
USFWS. 1987. Determination of Endangered Status for Eriastrum densifolium ssp. sanctorum (Santa Ana River Woolly-star) & Centrostegia leptoceras (Slender-Horned Spineflower). Federal Register. 52: 3626?-36270. |
Zembal, R.; Kramer, K.J. 1985. The status of the Santa Ana River woolly-star. Fremontia. 13, 3: 19-20. |
Burk, J.H.; Jones, C.E. 1990. The Santa Ana River Woolly Star: A strategy for protection. Preliminary Report prepared by the Chambers Group, Inc., for The Army Corp of Engineers. p.130. |
Burk, J.H.; Jones, C.E. 1993. Final Management Plan for the Santa Ana River Woolly Star, Eriastrum densifolium ssp. sanctorum. Prepared by the Chambers Group, Inc. for The U.S. Army Corps of Engineers, Los Angeles District. p.77 pages in 6 Sections with 7 Appendices. |
Burk, J.H.; Jones, C.E.; Wheeler, J.; DeSimone, S. 1988. The ecology of Eriastrum densifolium sanctorum (Milliken) Mason: Final Report. Placentia, California: Prepared for U. S. Army Corp of Engineers, Los Angeles District, by Environmental Audit, Inc. p.152. |
Dudek & Associates, Inc. 1999. Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) (Riverside County Integrated Plan (RCIP)) ôDraft Proposalö. Riverside, CA: County of Riverside Transportation and Land Management Agency. p.165. Draft Proposal. |
Jones, C.E; Burk, J.H. 1996. Eriastrum densifolium ssp. sanctorum : Report on 1995 Field Studies. Prepared for Psomas and Associates. p.16 pages with 5 Appendices. |
Jones, C.E; Burk, J.H. 1997. Eriastrum densifolium ssp. sanctorum : Report on 1996 Field Studies. Prepared for Psomas and Associates. p.22 pages with 2 Appendices. |
Jones, C.E; Burk, J.H. 1998. Eriastrum densifolium ssp. sanctorum : Report on 1997 Field Studies. Prepared for Psomas and Associates. p.14 pages. |
Stephenson, John R.; Calcarone, Gena M. 1999. Southern California Mountains and Foothills Assessment: Habitat and Species Conservation Issues. Chapter 5 - Potentially Vulnerable Species: Plants. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. p.402. General Technical report PSW-GTR-172. |
Brunell, Mark Scott. 1991. Genetic Variation in the Endangered Santa Ana River Woolly Star, Eriastrum densifolium ssp. sanctorum (Milliken) Mason (Polemoniaceae). [M.A. Thesis]: California State University. Fullerton. 80p. |
Brunell, Mark Scott. 1996. Biosystematics of Eriastrum densifolium (Bentham) Mason (Polemoniaceae). [Ph.D. Thesis]: University of California. Riverside. 151p. |
Erickson, Marion. 1994. Optimal Outcrossing and Pollinator Foraging Distance in the Santa Ana River Woolly Star, Eriastrum densifolium ssp. sanctorum (Milliken) Mason (Polemoniaceae). [M.A. Thesis]: California State University. Fullerton. 65p. |
Munoz, Axhel Abdiel. 1991. Reproductive Biology of the Endangered Santa Ana River Woolly Star, Eriastrum densifolium ssp. sanctorum (Milliken) Mason (Polemoniaceae). [M.A. Thesis]: California State University. Fullerton. 74p. |
Phommasaysy, Chan Tia. 1999. Germination Success of Eriastrum densifolium ssp. sanctorum Seeds from Five Successional Sites and Fitness of the Next Generation. [M.A. Thesis]: California State University. Fullerton, CA. 49p. |
Stone, Douglas R. 1995. Pollinator Effectiveness and Assemblages in Three Populations of Eriastrum densifolium (Benth.) Mason (Polemoniaceae). [M.A. Thesis]: California State University. Fullerton. 69p. |
Wheeler, John Allen. 1991. Seed and Seedling Ecology of Eriastrum densifolium ssp. sanctorum, an Endangered Floodplain Endemic. [M.A. Thesis]: California State University. Fullerton. 132p. |
| This profile was updated on 3/4/2010 |