Perityle saxicola - (Eastw.) Shinners
Fish Creek Rockdaisy
Taxonomic Status: Accepted
Related ITIS Name(s): Perityle saxicola (Eastw.) Shinners (TSN 38223)
Unique Identifier: ELEMENT_GLOBAL.2.150878
Element Code: PDAST700P0
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 saxicola
Taxonomic Comments: A distinct species in a genus of about 25 species native to southwestern U.S. and Mexico.
Conservation Status
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NatureServe Status

Global Status: G1
Global Status Last Reviewed: 17Oct2013
Global Status Last Changed: 17Oct2013
Ranking Methodology Used: Ranked by calculator
Rounded Global Status: G1 - Critically Imperiled
Reasons: Perityle saxicola is a narrow endemic with very specific habitat requirements. Species is suspected to occur throughout the Superstition Mountains in proper habitat. Threats are limited to major activities requiring blasting and aphid predation.
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 Arizona (S1)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Few known sites, all of which are within 20 miles of each other ranging over 6 sq km. Tonto National Monument and Sierra Ancha Mts in Gila County, and Roosevelt Dam vicinity in Superstition Mts, Maricopa County. Not found at Fish Creek, but suspected throughout the Superstition Mountains (Reichenbacher 1989).

Area of Occupancy: Unknown 4-km2 grid cells
Area of Occupancy Comments: Occupies an area of approximately 2 sq km. With inventory surveys, this plant may be found thoughout the Superstition Mountains as Frank Reichenbacher suspects (1989).

Number of Occurrences: 1 - 5
Number of Occurrences Comments: Three occurrences in Arizona (AGFD 2011); two of the three last visited in the 1980s. The species was recently (2003) collected in Tonto National Monument southwest of the original occurence site on the monument.

Population Size Comments: Frank Reichenbacher (1989) suspected species occurred throughout Superstition Mountains, and Bruce Palmer (1994) reported several hundred plants in Tonto National Monument. The Tonto National Monument occurrence was recently visited, however the other two known localities have not been visited since the 1980s. In 1994, Palmer reported the population at the monument numbering several hundred plants.

Number of Occurrences with Good Viability/Integrity: Unknown

Overall Threat Impact: Medium
Overall Threat Impact Comments: A narrow endemic with very specific habitat requirements. Past threats have been limited to major activities requiring blasting for dam, road and trail construction. Roosevelt Dam re-construction in the 1990s, may have impacted some plants, however, most plants occur higher up-slope, above construction activities. Aphids are a common predator. Local conditions of drought/shade may affect plants.

Short-term Trend: Relatively Stable (<=10% change)
Short-term Trend Comments: A narrow endemic, with few known localities. It is sporadic to common on Tonto National Monument, and sporadic near Roosevelt Dam. It occurs in the Sierra Ancha Mountains, and may occur thoughout the Superstition Mountains. The Type locality population just below Roosevelt Dam, consists of about 60 plants, while the plants at Tonto National Monument are "locally common," reported around several hundred by Palmer in 1994. In 1982, the reproductive success appeared to be good; unknown what their status is currently.

Long-term Trend: Unknown

Intrinsic Vulnerability Comments: Local conditions of drought/shade may affect morphology of individual plant, especially leaf size and degree of dissection. Aphids are a common predator. This plant is substrate driven and is edaphically restricted, with very specific habitat requirements.

Environmental Specificity: Very narrow. Specialist or community with key requirements scarce.
Environmental Specificity Comments: A narrow endemic of the Arizona upland subdivision of Sonoran desertscrub. Grows in xeric habitat on very steep slopes, from cracks and crevices on cliff faces, large boulders and rocky outcrops in canyons, and on buttes.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Few known sites, all of which are within 20 miles of each other ranging over 6 sq km. Tonto National Monument and Sierra Ancha Mts in Gila County, and Roosevelt Dam vicinity in Superstition Mts, Maricopa County. Not found at Fish Creek, but suspected throughout the Superstition Mountains (Reichenbacher 1989).

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

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
AZ Gila (04007), Maricopa (04013)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
15 Upper Salt (15060103)+, Lower Salt (15060106)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A perennial herb, 2-4 dm tall, that produces yellow ray and disk flowers.
Duration: PERENNIAL
Ecology Comments: Local conditions of drought/shade may affect morphology of individual plants, especially leaf size and local endemics (Palmer, 1994).
Terrestrial Habitat(s): Bare rock/talus/scree, Cliff, Desert
Habitat Comments: Cracks and crevices on very steep cliff faces, large boulders and rocky outcrops in canyons, and on buttes. Rock surfaces are composed of Barnes Conglomerate, Mescal Limestone, and igneous material (quartzite). Habitat is very xeric, appart of the Arizona Upland Subdivision of Sonoran desertscrub. Steep cliffs with generally east and northeast exposures, with slopes from 50-100%.
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: 31Jul1989
NatureServe Conservation Status Factors Author: Gardner, P.A., rev. S. Schwartz (1996), rev. D. Gries (1997), rev. S. Schuetze (2011)
Element Ecology & Life History Edition Date: 03Aug2011
Element Ecology & Life History Author(s): S. Schuetze

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
  • Darrow, R.A. 1948. Notes on the Arizona flora. Leaflets of western botany 5. 6: 3-100.

  • Eastwood, A. 1931. New species of plants from western North America. Proceedings California Academy Science IV 20(5): 135-160.

  • Fletcher, R. 1978. Status reoprt of Perityle saxicola. U.S. Forest Service, Albuquerque, New Mexico.

  • 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.

  • Mazzoni, J., N. Brian, B.G. Phillips. 1982. Status report Perityle saxicola (Eastwood) Shinners. Prepared for the U.S. Fish and Wildlife Service, Albuquerque, New Mexico.

  • Niles, W. 1970. Taxonomic investigations in genera perityle and Laphamia. Memoirs of the New York Botanical Garden 21: 16-55.

  • Powell, A.M. 1973. Taxonomy of Perityle section Laphamia (Compositae-Helenieae-Peritylinae). Sida 5(2): 61-128.

  • Reichenbacher, F.W. 1989. On-call surveys of federally listed, candidate category 1 plant species on the central Arizona project aqueduct route: interim report for task 11. Prepared for the Bur. Reclamation, Arizona Projects Office, Phoenix. Unpublished report.

  • Shreve, F., and I.L. Wiggins. 1964. Vegetation and flora of the Sonoran Desert. 2 volumes. Stanford Univ. Press, Stanford. 1740 pp.

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