Index of Species Information

SPECIES:  Prunus fremontii


Introductory

SPECIES: Prunus fremontii
AUTHORSHIP AND CITATION : Reed, William R. 1993. Prunus fremontii. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/ [].

ABBREVIATION : PRUFRE SYNONYMS : NO-ENTRY SCS PLANT CODE : PRFR COMMON NAMES : desert apricot TAXONOMY : The currently accepted scientific name of desert apricot is Prunus fremontii S. Wats [4,6,7]. There are no currently recognized subspecies, varieties, or forms. LIFE FORM : Tree, Shrub FEDERAL LEGAL STATUS : No special status OTHER STATUS : NO-ENTRY


DISTRIBUTION AND OCCURRENCE

SPECIES: Prunus fremontii
GENERAL DISTRIBUTION : Desert apricot occurs in Riverside and San Diego counties, California [6,7]. ECOSYSTEMS : FRES30 Desert shrub FRES34 Chaparral - mountain shrub FRES35 Pinyon - juniper STATES : CA BLM PHYSIOGRAPHIC REGIONS : 3 Southern Pacific Border 7 Lower Basin and Range KUCHLER PLANT ASSOCIATIONS : K023 Juniper - pinyon woodland K033 Chaparral K035 Coastal sagebrush K041 Creosotebush K042 Creosotebush - bursage K043 Paloverde - cactus shrub SAF COVER TYPES : 239 Pinyon - juniper 242 Mesquite SRM (RANGELAND) COVER TYPES : NO-ENTRY HABITAT TYPES AND PLANT COMMUNITIES : NO-ENTRY

MANAGEMENT CONSIDERATIONS

SPECIES: Prunus fremontii
IMPORTANCE TO LIVESTOCK AND WILDLIFE : Desert apricot has little or no value to browsing animals. Tannic acids and cyanogenic glucosides in the leaves discourage consumption. Extrafloral nectaries attract a variety of insects, particularly wasps and ants, to the leaves. The presence of these insects further discourages browsing [8,14]. PALATABILITY : NO-ENTRY NUTRITIONAL VALUE : NO-ENTRY COVER VALUE : NO-ENTRY VALUE FOR REHABILITATION OF DISTURBED SITES : NO-ENTRY OTHER USES AND VALUES : NO-ENTRY OTHER MANAGEMENT CONSIDERATIONS : NO-ENTRY

BOTANICAL AND ECOLOGICAL CHARACTERISTICS

SPECIES: Prunus fremontii
GENERAL BOTANICAL CHARACTERISTICS : Desert apricot is a rigidly branched, native, deciduous shrub or small tree. It grows from 5 to 13 feet tall (1.5-4 m) and has glabrous, spine-tipped twigs. Leaves are round and 0.5 to 0.75 (1-2 cm) long. It bears a stone fruit which is 0.32 to 0.56 inches long (8-14 mm) [6,7]. RAUNKIAER LIFE FORM : Phanerophyte REGENERATION PROCESSES : NO-ENTRY SITE CHARACTERISTICS : Desert apricot is predominantly found in canyons below 4,000 feet (1,212 m) in elevation. Sites range from thick stands of woody shrubs with little barren ground to widely spaced desert scrubs. Soils are typically sandy [11,12]. Common plant associates of desert apricot include chaparral currant (Ribes malvaceum), Our Lord's candle (Yucca whipplei), California juniper (Juniperus californica), desert-willow (Chilopsis linearis), buckhorn cholla (Opuntia acanthocarpa), and hedgehog cactus (Echinocerus engelmannii) [12]. SUCCESSIONAL STATUS : NO-ENTRY SEASONAL DEVELOPMENT : Desert apricot flowers from February to March [6,7].

FIRE ECOLOGY

SPECIES: Prunus fremontii
FIRE ECOLOGY OR ADAPTATIONS : Desert apricot sprouts vigorously from the root crown following top-kill by fire [11,12]. POSTFIRE REGENERATION STRATEGY : Tall shrub, adventitious-bud root crown

FIRE EFFECTS

SPECIES: Prunus fremontii
IMMEDIATE FIRE EFFECT ON PLANT : Desert apricot is top-killed by fire [11,12]. DISCUSSION AND QUALIFICATION OF FIRE EFFECT : NO-ENTRY PLANT RESPONSE TO FIRE : Desert apricot sprouted vigorously from the root crown following a fire in California's Anza-Borrego Desert State Park. More than 75 percent of the prefire population sprouted within 7 months of the fire. After 1 year, there were an average of 90 plants per acre (40 plants/ha) [12]. DISCUSSION AND QUALIFICATION OF PLANT RESPONSE : NO-ENTRY FIRE MANAGEMENT CONSIDERATIONS : NO-ENTRY

REFERENCES

SPECIES: Prunus fremontii
REFERENCES : 1. Bernard, Stephen R.; Brown, Kenneth F. 1977. Distribution of mammals, reptiles, and amphibians by BLM physiographic regions and A.W. Kuchler's associations for the eleven western states. Tech. Note 301. Denver, CO: U.S. Department of the Interior, Bureau of Land Management. 169 p. [434] 2. Eyre, F. H., ed. 1980. Forest cover types of the United States and Canada. Washington, DC: Society of American Foresters. 148 p. [905] 3. Garrison, George A.; Bjugstad, Ardell J.; Duncan, Don A.; [and others]. 1977. Vegetation and environmental features of forest and range ecosystems. Agric. Handb. 475. Washington, DC: U.S. Department of Agriculture, Forest Service. 68 p. [998] 4. Kartesz, John T.; Kartesz, Rosemarie. 1980. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. Volume II: The biota of North America. Chapel Hill, NC: The University of North Carolina Press; in confederation with Anne H. Lindsey and C. Richie Bell, North Carolina Botanical Garden. 500 p. [6954] 5. Kuchler, A. W. 1964. Manual to accompany the map of potential vegetation of the conterminous United States. Special Publication No. 36. New York: American Geographical Society. 77 p. [1384] 6. Munz, Philip A. 1973. A California flora and supplement. Berkeley, CA: University of California Press. 1905 p. [6155] 7. Munz, Philip A. 1974. A flora of southern California. Berkeley, CA: University of California Press. 1086 p. [4924] 8. Pase, Charles P.; Brown, David E. 1982. California coastalscrub. In: Brown, David E., ed. Biotic communities of the American Southwest--United States and Mexico. Desert Plants. 4(1-4): 86-90. [1825] 8. Pemberton, Robert W. 1988. The abundance of plants bearing extrafloral nectaries in Colorado and Mojave Desert communities of southern California. Madrono. 35(3): 238-246. [6163] 9. Raunkiaer, C. 1934. The life forms of plants and statistical plant geography. Oxford: Clarendon Press. 632 p. [2843] 10. Stickney, Peter F. 1989. Seral origin of species originating in northern Rocky Mountain forests. Unpublished draft on file at: U.S. Department of Agriculture, Forest Service, Intermountain Research Station, Fire Sciences Laboratory, Missoula, MT; RWU 4403 files. 7 p. [20090] 11. Tratz, Wallace M.; Vogl, Richard J. 1977. Postfire vegetational recovery, productivity, and herbivore utilization of a chaparral-desert ecotone. In: Mooney, Harold A.; Conrad, C. Eugene, technical coordinators. Proceeedings of the symp. on the environmental consequences of fire & fuel management in Mediterranean ecosystems; 1977 August 1-5; Palo Alto, CA. Gen. Tech. Rep. WO-3. Washington, DC: U.S. Department of Agriculture, Forest Service: 426-430. [4873] 12. Tratz, Wallace Michael. 1978. Postfire vegetational recovery, productivity, and herbivore utilization of a chaparral-desert ecotone. Los Angeles, CA: California State University. 133 p. Thesis. [5495] 13. U.S. Department of Agriculture, Soil Conservation Service. 1982. National list of scientific plant names. Vol. 1. List of plant names. SCS-TP-159. Washington, DC. 416 p. [11573] 14. Wisdom, Charles S.; Gonzalez-Coloma, Azucena; Rundel, Philip W. 1987. Phytochemical constituents in a Sonoran Desert plant community. In: Provenza, Frederick D.; Flinders, Jerran T.; McArthur, E. Durant, compilers. Proceedings--symposium on plant-herbivore interactions; 1985 August 7-9; Snowbird, UT. Gen. Tech. Rep. INT-222. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station: 84-87. [7401]


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