Abronia ammophila - Greene
Tweedy's Sand-verbena
Taxonomic Status: Accepted
Related ITIS Name(s): Abronia ammophila Greene (TSN 184206)
Unique Identifier: ELEMENT_GLOBAL.2.155919
Element Code: PDNYC01040
Informal Taxonomy: Plants, Vascular - Flowering Plants - Four-O'clock Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Caryophyllales Nyctaginaceae Abronia
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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: Abronia ammophila
Conservation Status
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NatureServe Status

Global Status: G1
Global Status Last Reviewed: 08Dec2008
Global Status Last Changed: 22Apr1993
Rounded Global Status: G1 - Critically Imperiled
Reasons: Endemic to Yellowstone National Park, Wyoming. Intrinsically rare. Some habitat has probably been lost to development of campground and recreational facilities on Yellowstone Lake.
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 Wyoming (S1)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: State endemic known only from the shores of Yellowstone Lake near Pelican Creek and 3 other stations on the west side of the lake (discovered by J. Whipple in 1998). Erroneously reported from 2 locations in the Green River Basin of Sublette County.

Area of Occupancy: 1-125 4-km2 grid cells
Area of Occupancy Comments:  

Number of Occurrences: 1 - 5
Number of Occurrences Comments: 1 EO on file and 3 more EOs reported in NPS study (Whipple 2004 personal communication).

Population Size Comments: In 1998, there were approximately 8,326 to 9,680 plants, most of which were seedlings (Whipple 2002).

Number of Occurrences with Good Viability/Integrity: Very few (1-3)
Viability/Integrity Comments: Most of the few occurrences have good viability.

Overall Threat Impact: Very high - medium
Overall Threat Impact Comments: Non-motorized recreational use in species habitat is widespread. Lake levels have dropped under drought conditions, and species' capacity to shift zone of occupancy or rebound with return of water levels is presumed at some level.

Short-term Trend Comments: The smallest of the four populations may be extirpated (Whipple 2004 personal communication). There is also decline associated with drought.

Long-term Trend: Decline of 50-90%
Long-term Trend Comments: Based on collections, the species was more widely distributed around the lake in the late 1800's (Whipple 2002). Abronia ammophila may have been extirpated from significant portions of its original range due to human activity, especially along the northern shoreline of Yellowstone Lake (Whipple 2002).

Intrinsic Vulnerability Comments: Restricted to narrow band of shoreline habitat on Yellowstone Lake, stabilized sand shoreline just above the maximum splash zone. Life span unknown but considered short-lived.

Environmental Specificity: Very narrow. Specialist or community with key requirements scarce.

Other NatureServe Conservation Status Information

Distribution
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Global Range: State endemic known only from the shores of Yellowstone Lake near Pelican Creek and 3 other stations on the west side of the lake (discovered by J. Whipple in 1998). Erroneously reported from 2 locations in the Green River Basin of Sublette County.

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 WY

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
WY Park (56029), Teton (56039)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
10 Yellowstone Headwaters (10070001)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A perennial herb with prostrate stems up to 4 dm long. Stems are sticky and densely hairy. The leaves are arranged opposite each other on the stem; they have a long leaf-stalk and oval to diamond-shaped blades. Head-like clusters of whitish, tubular flowers surrounded by 5 oval bracts bloom in July and August.
Palustrine Habitat(s): HERBACEOUS WETLAND, Riparian
Habitat Comments: Sandy lakeshores at about 2350 m elevation.
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: 02Apr2005
NatureServe Conservation Status Factors Author: B. Heidel, rev. A. Tomaino (2008)

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. 2011. HUC10-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.

  • Clark, T. W., A. H. Harvey, R. D. Dorn, D. L. Genter, and C. Groves. 1989. Rare, sensitive, and threatened species of the Greater Yellowstone Ecosystem. Northern Rockies Conservation Cooperative, Montana Natural Heritage Program, The Nature Conservancy, and Mountain West Environmental Services.

  • Clark, T.W., A.H. Harvey, R.D. Dorn, D.L. Genter, and C. Groves, eds. 1989. Rare, Sensitive, and Threatened species of the Greater Yellowstone Ecosystem. Northern Rockies Conservation Cooperative, Montana Natural Heritage Program, The Nature Conservancy, and Mountain West Environmental Services. 153 pp.

  • Croft, L.K., W.R. Owen, and J.S. Shelly. 1997. Interior Columbia Basin Ecosystem Management Project Analysis of Vascular Plants. US Forest Service.

  • Dorn, R. D. 1992. Vascular Plants of Wyoming, second edition. Mountain West Publishing, Cheyenne, WY.

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

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

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

  • Fertig, W. 1993. U. S. Fish and Wildlife Service candidate plant species of Wyoming. Unpublished report prepared for Wyoming Weed and Pest Supervisor's meeting in Cody, WY, March 1993.

  • Fertig, W. 2000. June 30-last update. Abronia ammophila State Species Abstract. Online. Available: http://uwadmnweb.uwyo.edu/WYNDD/PDF_files/Plant_Summaries/A/Abronia%20ammophila.pdf. Accessed 2003, April 10.

  • 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., C. Refsdal, and J. Whipple. 1994. Wyoming Rare Plant Field Guide. Wyoming Rare Plant Technical Committee, Cheyenne, WY.

  • Fertig, W., C. Refsdal, and J. Whipple. 1994. Wyoming rare plant field guide. Wyoming Rare Plant Technical Committee, Cheyenne. No pagination.

  • Flora of North America Editorial Committee. 2003b. Flora of North America North of Mexico. Vol. 4, Magnoliophyta: Caryophyllidae, part 1. Oxford University Press, New York. 559 pp.

  • Galloway, L. A. 1975. Systematics of the North American desert species of Abronia and Tripterocalyx (Nyctaginaceae). Brittonia 27:328-347.

  • Galloway, L. A. 2003. Abronia. Pages 61-69 in Flora of North America Editorial Committee, editor. Flora of North America North of Mexico. Vol. 4. Magnoliophyta: Caryophyllidae, part 1. Oxford University Press, New York, NY.

  • Galloway, L.A. 1975. Systematics of the North American desert species of Abronia and Tripterocalyx (Nyctaginaceae). Brittonia 27: 328-347.

  • 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.

  • Marriott, H. J. 1993. Status report for Abronia ammophila (Tweedy's sand verbena), Sublette County, Wyoming. Unpublished report prepared for the Bureau of Land Management Rock Springs District by the Wyoming Natural Diversity Database, Laramie, WY.

  • Marriott, H.J. 1993. Status report for Abronia ammophila (Tweedy's sand verbena), Sublette County, Wyoming. Unpublished report prepared for the Bureau of Land Management, Rock Springs District by the Wyoming Nature Conservancy.

  • Porter, C.L. 1968. A Flora of Wyoming: Part VI. Research Journal 20:1-63. Agricultural Experiment Station, University of Wyoming.

  • U.S. Fish and Wildlife Service. 2011. Endangered and threatened wildlife and plants: 12-month finding on a petition to list Abronia ammophila, Agrostis rossiae, Astragalus proimanthus, Boechera (Arabis) pusilla, and Penstemon gibbensii as threatened or endangered; Proposed Rule. Federal Register 76:33924-33965. Prepared by staff members of the Wyoming Ecological Services Field Office.

  • Whipple, J. 1999. Survey and assessment of Yellowstone (WY) Sand Verbena (Abronia ammophila) - final report to National Fish and Wildlife Service Foundation, Project No. 97-073-031. Yellowstone National Park.

  • Whipple, J. 1999. The Yellowstone sand verbea. Castilleja 18(4): 1-3.

  • Whipple, J. 2012. Endemic plants of Yellowstone. Yellowstone Science 20:17-24.

  • Whipple, J. J. 2002. Yellowstone sand verbena (Abronia ammophila):a Yellowstone Lake endemic. Yellowstone Lake:hotbed of chaos or reservoir of resilience? In 6th Biennial Scientific Conference on the Greater Yellowstone Ecosystem. Yellowstone Center for R

  • Whipple, J.J. 2002. Yelowstone sand verbena (Abronia ammophila): a Yellowstone Lake endemic. In: Anderson, R.J. and D. Harmon, eds. 2002. Yellowstone Lake: hotbed of chaos or reseroir of resilience? Proceedings of the 6th Biennial Scientific Conference on the Greater Yellowstone Ecosystem. Oct 8-10, 2001. Yellowstone National Park, Wyo., and Hancock, Mich.: Yellowstone Center for Resources and the George Wright Society. [http://www.georgewright.org/01yp_whipple.pdf]

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