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You are here >1Up Info > Wildlife, Animals, and Plants > Plant Species > Shrub > Species: Acamptopappus sphaerocephalus | Rayless Goldenhead
 

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Introductory

SPECIES: Acamptopappus sphaerocephalus | Rayless Goldenhead
ABBREVIATION : ACASPH SYNONYMS : NO-ENTRY SCS PLANT CODE : ACSP ACSPH ACSPS2 COMMON NAMES : rayless goldenhead TAXONOMY : The currently accepted scientific name of rayless goldenhead is Acamptopappus sphaerocephalus (Harv. & Gray) Gray (Asteraceae) [7,10,20]. There are two recognized varieties: Acamptopappus sphaerocephlus var. sphaerocephlus and A. s. var. hirtellus Blake [10]. LIFE FORM : Shrub FEDERAL LEGAL STATUS : No special status OTHER STATUS : NO-ENTRY COMPILED BY AND DATE : Randy Scott Griffith, June 1991. LAST REVISED BY AND DATE : NO-ENTRY AUTHORSHIP AND CITATION : Griffith, Randy Scott. 1991. Acamptopappus sphaerocephalus. In: Remainder of Citation

DISTRIBUTION AND OCCURRENCE

SPECIES: Acamptopappus sphaerocephalus | Rayless Goldenhead
GENERAL DISTRIBUTION : Rayless goldenhead occurs in desert regions of the southwestern United States [7,10,20]. In the Mojave Desert it occurs in northwestern Arizona, southeastern California, and southwestern Nevada. It is also found in the southern reaches of the Great Basin Desert in north-central Arizona, western Colorado, northwestern New Mexico, southeastern Nevada, and southern Utah [2,7,10,14]. ECOSYSTEMS : FRES30 Desert shrub FRES33 Southwestern shrubsteppe FRES35 Pinyon - juniper FRES40 Desert grasslands STATES : AZ CA CO NV NM UT ADMINISTRATIVE UNITS : DEVA GLCA GRCA JOTR LAME ORPI ZION BLM PHYSIOGRAPHIC REGIONS : 4 Sierra Mountains 6 Upper Basin and Range 7 Lower Basin and Range 12 Colorado Plateau KUCHLER PLANT ASSOCIATIONS : K023 Juniper - pinyon woodland K039 Blackbrush K040 Saltbush - greasewood K041 Creosotebush K042 Creosotebush - bursage K057 Galleta - threeawn shrubsteppe SAF COVER TYPES : 68 Mesquite 239 Pinyon - juniper 242 Mesquite SRM (RANGELAND) COVER TYPES : NO-ENTRY HABITAT TYPES AND PLANT COMMUNITIES : Rayless goldenhead may be associated with catclaw acacia (Acacia greggii), California juniper (Juniperus californica), scrub oak (Quercus turbinella), Joshua tree (Yucca brevifolia), California buckwheat (Eriogonum fasciculatum), golden cholla (Opuntia echinocarpa), and Mojave yucca (Y. schidigera) [2,3].

VALUE AND USE

SPECIES: Acamptopappus sphaerocephalus | Rayless Goldenhead
WOOD PRODUCTS VALUE : NO-ENTRY IMPORTANCE TO LIVESTOCK AND WILDLIFE : Sheep browse rayless goldenhead when better forage is unavailable [7,15]. 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 MANAGEMENT CONSIDERATIONS : Browsing may significantly reduce the mean cover and mean shrub height of rayless goldenhead. Heavy browsing is more detrimental than light browsing [15].

BOTANICAL AND ECOLOGICAL CHARACTERISTICS

SPECIES: Acamptopappus sphaerocephalus | Rayless Goldenhead
GENERAL BOTANICAL CHARACTERISTICS : Rayless goldenhead is a native shrub. Generally it is less than 3.3 feet (1 m) tall. The stems are much branched with white bark; the bark becomes shreddy with age. The leaves are alternate, entire, and spatulate. Flowerheads are yellow, discoid, and arranged in a cyme. The fruit is an achene [7,10,16,20]. RAUNKIAER LIFE FORM : Phanerophyte REGENERATION PROCESSES : Little information is availbale on rayless goldenhead reproduction. All the cyme flowers are fertile [16]; however, Young and Young [18] reported "only limited germination at low incubation temperatures." Seeds collected in Riverside County, California, and germinated in a greenhouse showed "poor to good germination." Outplanted seedlings showed a 41 percent success rate after 2 or 3 years [22]. Sprouting capacity of this species is unknown. SITE CHARACTERISTICS : Rayless goldenhead occupies open, sandy to rocky bajadas, washes, limestone ridges, dry plains, and mesas [7,12]. Its distribution is clumped [3]. Soil: Rayless goldenhead is found in Alfisol, Aridisol, and Mollisol soil types [17]. Elevation: Rayless goldenhead grows at elevations of 1,000 to 4,500 feet (305-1,370 m) in Arizona [7] and 200 to 7,260 feet (60-2,200 m) in California [20]. SUCCESSIONAL STATUS : Facultative Seral Species Rayless goldenhead exhibited no distinct successional pattern on disturbed sites in the Mohave Desert. It is considered a short to moderately long-lived species that may occur in disturbed to climax creosotebush (Larrea tridentata) communities [14,21]. In some cases, rayless goldenhead populations may increase rapidly when long-lived species such as creosotebush, ragweed (Ambrosia dumosa), and Nevada ephedra (Ephedra nevadensis) are reduced by disturbance [21]. SEASONAL DEVELOPMENT : Rayless goldenhead flowers from April to June in California [10] and April to October in Arizona [7].

FIRE ECOLOGY

SPECIES: Acamptopappus sphaerocephalus | Rayless Goldenhead
FIRE ECOLOGY OR ADAPTATIONS : Since rayless goldenhead seed is dormant and species distribution is clumped, rayless goldenhead probably establishes from on-site, soil-stored seed. There is no information available on rayless goldenhead fire survivorship or postfire regeneration. POSTFIRE REGENERATION STRATEGY : NO-ENTRY

FIRE EFFECTS

SPECIES: Acamptopappus sphaerocephalus | Rayless Goldenhead
IMMEDIATE FIRE EFFECT ON PLANT : DISCUSSION AND QUALIFICATION OF FIRE EFFECT : NO-ENTRY PLANT RESPONSE TO FIRE : DISCUSSION AND QUALIFICATION OF PLANT RESPONSE : NO-ENTRY FIRE MANAGEMENT CONSIDERATIONS : NO-ENTRY

REFERENCES

SPECIES: Acamptopappus sphaerocephalus | Rayless Goldenhead
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. Blake, John G. 1984. A seasonal analysis of bird communities in southern Nevada. Southwestern Naturalist. 29(4): 463-474. [5849] 3. Cody, M. L. 1986. Spacing patterns in Mojave Desert plant communities: near-neighbor analyses. Journal of Arid Environments. 11: 199-217. [4411] 4. Eyre, F. H., ed. 1980. Forest cover types of the United States and Canada. Washington, DC: Society of American Foresters. 148 p. [905] 5. 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] 6. 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] 7. Kearney, Thomas H.; Peebles, Robert H.; Howell, John Thomas; McClintock, Elizabeth. 1960. Arizona flora. 2d ed. Berkeley, CA: University of California Press. 1085 p. [6563] 8. 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] 9. Lyon, L. Jack; Stickney, Peter F. 1976. Early vegetal succession following large northern Rocky Mountain wildfires. In: Proceedings, Tall Timbers fire ecology conference and Intermountain Fire Research Council fire and land management symposium; 1974 October 8-10; Missoula, MT. No. 14. Tallahassee, FL: Tall Timbers Research Station: 355-373. [1496] 10. Munz, Philip A. 1973. A California flora and supplement. Berkeley, CA: University of California Press. 1905 p. [6155] 11. Raunkiaer, C. 1934. The life forms of plants and statistical plant geography. Oxford: Clarendon Press. 632 p. [2843] 12. Thorne, Robert F.; Prigge, Barry A.; Henrickson, James. 1981. A flora of the higher ranges and the Kelso Dunes of the eastern Mojave Desert in California. Aliso. 10(1): 71-186. [3767] 13. U.S. Department of Agriculture, Soil Conservation Service. 1994. Plants of the U.S.--alphabetical listing. Washington, DC: U.S. Department of Agriculture, Soil Conservation Service. 954 p. [23104] 14. Vasek, Frank C. 1979. Early successional stages in Mojave Desert scrub vegetation. Israel Journal of Botany. 28: 133-148. [4579] 15. Webb, Robert H.; Stielstra, Steven S. 1979. Sheep grazing effects on Mojave Desert vegetation and soils. Environmental Management. 3(6): 517-529. [4164] 16. Welsh, Stanley L.; Atwood, N. Duane; Goodrich, Sherel; Higgins, Larry C., eds. 1987. A Utah flora. Great Basin Naturalist Memoir No. 9. Provo, UT: Brigham Young University. 894 p. [2944] 17. West, N. E. 1983. Great Basin-Colorado plateau sagebrush semi-desert. In: Temperate deserts and semi-deserts. Amsterdam; Oxford; New York: Elsevier Scientific Publishing Company: 331-349. (Goodall, David W., ed. in chief; Ecosystems of the world; vol. 5). [2505] 18. Young, James A.; Young, Cheryl G. 1986. Collecting, processing and germinating seeds of wildland plants. Portland, OR: Timber Press. 236 p. [12232] 19. 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] 20. Hickman, James C., ed. 1993. The Jepson manual: Higher plants of California. Berkeley, CA: University of California Press. 1400 p. [21992] 21. Vasek, Frank C.; Barbour, Michael G. 1977. Mojave desert scrub vegetation. In: Barbour, M. G.; Major, J., eds. Terestrial vegetation of California. New York: John Wiley and Sons: 835-867. [3730] 22. Everett, Percy C. 1957. A summary of the culture of California plants at the Rancho Santa Ana Botanic Garden 1927-1950. Claremont, CA: The Rancho Santa Ana Botanic Garden. 223 p. [7191]

Index

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