Leptodactylon watsonii - (Gray) Rydb.
Watson's Prickly-phlox
Other Common Names: Watson's prickly phlox
Synonym(s): Linanthus watsonii (Gray) Wherry
Taxonomic Status: Accepted
Related ITIS Name(s): Leptodactylon watsonii (Gray) Rydb. (TSN 503390)
Unique Identifier: ELEMENT_GLOBAL.2.130356
Element Code: PDPLM08050
Informal Taxonomy: Plants, Vascular - Flowering Plants - Phlox Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Solanales Polemoniaceae Leptodactylon
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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: Leptodactylon watsonii
Conservation Status
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NatureServe Status

Global Status: G3G5
Global Status Last Reviewed: 18May1999
Global Status Last Changed: 27Dec1999
Rounded Global Status: G4 - Apparently Secure
Reasons: There are 25 locations documented in 3 states. However, given that the full distribution includes at least five states in at least 24 counties, the total number of locations is expected to be much higher.
Nation: United States
National Status: N3N5

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 Colorado (S2), Idaho (SNR), Nevada (SNR), Utah (S3), Wyoming (S1)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Idaho to NC Wyoming south to Nevada, Utah, and Colorado.

Number of Occurrences:  
Number of Occurrences Comments: There are 4 records in Wyoming (pers. comm. Walt Fertig WYNDD 1999). There is one specimen from Moffat County, Colorado at the CSU Herbarium (1999), and Weber and Wittmann (1996) report the distribution as Moffat to Mesa counties (Rio Blanco and Garfield counties are between Moffat and Mesa counties). The UTNHP does not have any occurrences in their database for this species, however they rank it an S3 in Utah (pers. comm. Ben Franklin UTNHP 1999 to Kim Fayette). It is assumed that there are at least 20 occurrences based on this rank. There are no locational data available for Nevada or Idaho.

Overall Threat Impact Comments: This species grows on sandstone and dolomite ledges and similar rocky habitats so threats from humans may be relatively minimal (pers. comm. Michael Mancuso Idaho CDC 1999 and Walt Fertig WYNDD 1999 to Kim Fayette).

Other NatureServe Conservation Status Information

Distribution
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Global Range: Idaho to NC Wyoming south to Nevada, Utah, and Colorado.

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 CO, ID, NV, UT, WY

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
WY Fremont (56013), Hot Springs (56017), Sweetwater (56037), Washakie (56043)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
10 Lower Wind (10080005)+, Nowood (10080008)+
14 Upper Green-Flaming Gorge Reservoir (14040106)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: White flowered, opposite leaves subshrub.
Habitat Comments: In Utah, this species is found in blackbrush, sagebrush, pinyon-juniper, mountain brush, and mixed conifer communities (often in crevices) at 1220 to 3050 meters (Welsh et al. 1993). The Vascular Plants of Wyoming (Dorn 1992) reports that this species is found along cliffs and crevices.
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation
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Minimum Criteria for an Occurrence: Any naturally occurring population. EOs are separated by either: 1 mile or more across unsuitable habitat or altered and unsuitable areas; or 2 miles or more across apparently suitable habitat that is not known to be occupied. Justification: The rationale for this large a separation distance across suitable but apparently unoccupied habitat is that it is likely that additional research will find this habitat to be occupied. It can often be assumed that apparently unconnected populations will eventually be found to be more closely connected; these are best regarded as suboccurrences.
Date: 27Dec1999
Author: Spackman, S., and K. Fayette.
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: 14Jun2000
NatureServe Conservation Status Factors Author: Fayette, Kim, and Susan Spackman (1999), rev. L. Morse (2000)

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
  • Andersen, M.D. and B. Heidel. 2011. HUC-based species range maps. Prepared by Wyoming Natural Diversity Database for use in the pilot WISDOM application operational from inception to yet-to-be-determined date of update of tool.

  • Beauvais, G.P., W. Fertig, and G.P. Jones. 2000. Rare species and the vegetation of Washakie County, Wyoming. Report prepared for the Washakie County planner by the Wyoming Natural Diversity Database, Laramie, WY.

  • Colorado State University Herbarium. 1999. "Colorado State University Herbarium Database". http://www.colostate.edu/Depts/Biology/Herbarium/ database.html. (May 15 1999).

  • Cronquist, A., A. H. Holmgren, N. H. Holmgren, J. L. Reveal, and P. K. Holmgren. 1984. Intermountain Flora; Vascular Plants of the Intermountain West, U.S.A. Volume 4: Subclass Asteridae. New York Botanical Garden, Bronx, NY.

  • Dorn, R. D. 2001. Vascular Plants of Wyoming, third edition. Mountain West Publishing, Cheyenne, WY.

  • Dorn, R. D. 2001. Vascular Plants of Wyoming. 3rd edition. Mountain West Publishing. Cheyenne, Wyoming. 412 pp.

  • Dorn, R.D. 1992. Vascular plants of Wyoming, 2nd edition. Mountain West Publishing, Cheyenne, Wyoming.

  • Evert, E. F. 2010. Vascular Plants of the Greater Yellowstone Area: Annotated Catalog and Atlas. Park Ridge, IL.

  • Fertig, W. 2000. State Species Abstract: Linanthus watsonii. Wyoming Natural Diversity Database. Available on the internet at www.uwyo.edu/wyndd.

  • Fertig, W. 1999. The status of rare plants in the Bighorn Landscape. Report prepared for The Nature Conservancy Wyoming Field Office by the Wyoming Natural Diversity Database, Laramie, Wyoming.

  • Fertig, W. 2000. Rare vascular plant species in the Wyoming portion of the Utah-Wyoming Rocky Mountains Ecoregion. Prepared for the Wyoming Nature Conservancy by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W., L. Welp, and S. Markow. 1998. The status of rare plants in southwest Wyoming. Unpublished report prepared for the Bureau of Land Management by the Wyoming Natural Diversity Database, Laramie, WY.

  • Hartman, R. L., B. E. Nelson, and K. H. Dueholm. 1985. Noteworthy collections: Wyoming. Madroņo 32:125-128.

  • Jones, G. P. and W. Fertig. 1992. Checklist of the vascular plant flora of the Grass Creek Resource Area, north-central Wyoming. Unpublished report prepared for the Worland District, Bureau of Land Management by the Wyoming Natural Diversity Database, Laramie, WY.

  • Kartesz, J., and the Biota of North America Program (BONAP). 1998. A Synonymized Checklist of the Vascular Flora of the United States, Puerto Rico, and the Virgin Islands. http://plants.usda.gov.

  • 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.

  • Moore, L. and S. Friedley. 2006. Leptodactylon watsonii (Gray) Rydberg (Watson's prickly phlox): A Technical Conservation Assessment. USDA Forest Service, Rocky Mountain Region. http://www.fs.fed.us/r2/projects/scp/assessments/Leptodactylonwatsonii.pdf.

  • Weber, W.A., and R.C. Wittmann. 1996a. Colorado flora: Eastern slope. Revised edition. Univ. Press of Colorado, Niwot, Colorado. 524 pp.

  • Welp, L., W. Fertig, and G. Jones. 1998. Ecological evaluation of the potential Tensleep Canyon Research Natural Area within the Bighorn National Forest, Washakie County, Wyoming. Unpublished report prepared for the Bighorn National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Welp, L., W.F. Fertig, G.P. Jones, G.P. Beauvais, and S.M. Ogle. 2000. Fine filter analysis of the Bighorn, Medicine Bow, and Shoshone National Forests in Wyoming. Wyoming Natural Diversity Database, Laramie, WY.

  • Welsh, S. L., and N. D. Atwood. 1999. Flora of [the] Bureau of Land Management['s] Grand Staircase-Escalante National Monument. 104 pp. + field forms.

  • Welsh, S.L., N.D. Atwood, S. Goodrich, and L.C. Higgins (eds.) 1993. A Utah flora. 2nd edition. Brigham Young Univ., Provo, Utah. 986 pp.

  • Welsh, S.L., N.D. Atwood, S. Goodrich, and L.C. Higgins, (eds). 1993. A Utah Flora, second edition, revised. Brigham Young University Print Services, Provo, UT.

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