Perityle megalocephala var. intricata - (Brandeg.) A. Powell
Delicate Rockdaisy
Synonym(s): Perityle intricata (Brandeg.) Shinners
Taxonomic Status: Accepted
Related ITIS Name(s): Perityle intricata (Brandegee) Shinners (TSN 518713)
Unique Identifier: ELEMENT_GLOBAL.2.137190
Element Code: PDAST700J1
Informal Taxonomy: Plants, Vascular - Flowering Plants - Aster Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Asterales Asteraceae Perityle
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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: Perityle megalocephala var. intricata
Taxonomic Comments: Treated at the species level as Perityle intricata by Kartesz (1999); had been treated at the varietal level by him in 1994 as P. megacephala var. intricata.
Conservation Status
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NatureServe Status

Global Status: G4T3
Global Status Last Reviewed: 09May2001
Global Status Last Changed: 08Jan1998
Rounded Global Status: T3 - Vulnerable
Reasons: Occurrences numerous and relatively secure, scattered across 3 large Nevada counties and in California.
Nation: United States
National Status: N3

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 Arizona (S1), Nevada (S3)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Range in Nevada about 160 km across in its longest dimension.

Number of Occurrences: 21 - 80
Number of Occurrences Comments: In Nevada 58 occurrences separated by at least 1 km as of 5/2001.

Overall Threat Impact Comments: Habitat relatively invulnerable.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Range in Nevada about 160 km across in its longest dimension.

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 AZ, NV

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
NV Clark (32003), Lincoln (32017), Nye (32023)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
15 Lake Mead (15010005)+*, White (15010011)+, Muddy (15010012)+*, Las Vegas Wash (15010015)+
16 Sand Spring-Tikaboo Valleys (16060014)+, Ivanpah-Pahrump Valleys (16060015)+*
18 Upper Amargosa (18090202)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History Not yet assessed
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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: 09May2001
NatureServe Conservation Status Factors Author: J. Morefield (NVHP)

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
  • Ackerman, T. 1981. A survey of possible threatened and endangered plant species on the Desert National Wildlife Refuge. U. S. Fish and Wildlife Service. 322 pp.

  • Baldwin, B. G., S. Boyd, B. J. Ertter, R. W. Patterson, T. J. Rosatti, D. H. Wilken (eds.), and M. Wetherwax (managing ed.). 2002. The Jepson desert manual: Vascular plants of south-eastern California. Berkeley: University of California Press. xiv + 624 pages.

  • Beatley, J.C. 1976. Vascular plants of the Nevada Test Site and central-southern Nevada: ecologic and geographic distributions. Nevada Test Site: Energy Research and Development Administration, and Springfield, Virginia: National Technical Information Service, TID-26881. 308 pages.

  • Beatley, J.C. 1977. Threatened plant species of the Nevada Test Site, Ash Meadows, and central-southern Nevada. Nevada Test Site: U. S. Energy Research and Development Administration, report COO-2307-12.

  • Brandegee, T. S. 1899. New species of western plants. Botanical Gazette 27: 444-457.

  • Cochrane, S.A. 1979. Status of endangered and threatened plant species on Nevada Test Site - a survey, parts 1 and 2. Appendix C: Collection records for the taxa considered. Santa Barbara, California: EG& G/EM Report 183-2356.

  • Cronquist, A. 1994. Asterales. Pages 1-496 in: Cronquist, A., A. H. Holmgren, N. H. Holmgren, J. L. Reveal, and P. K. Holmgren. Intermountain flora vol. 5. Bronx: The New York Botanical Garden.

  • Flora of North America Editorial Committee. 2006c. Flora of North America North of Mexico. Vol. 21. Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford Univ. Press, New York. xxii + 616 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.

  • Niles, W. E. 1970. Taxonomic investigations in the genera Perityle and Laphamia (Compositae). Memoirs of the New York Botanical Garden 21: 1-82.

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