Lomatium attenuatum - Evert
Taper-tip Desert-parsley
Taxonomic Status: Accepted
Related ITIS Name(s): Lomatium attenuatum Evert (TSN 503532)
Unique Identifier: ELEMENT_GLOBAL.2.154275
Element Code: PDAPI1B240
Informal Taxonomy: Plants, Vascular - Flowering Plants - Carrot Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Apiales Apiaceae Lomatium
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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: Lomatium attenuatum
Conservation Status
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NatureServe Status

Global Status: G3
Global Status Last Reviewed: 06Sep2013
Global Status Last Changed: 10Apr1998
Ranking Methodology Used: Ranked by calculator
Rounded Global Status: G3 - Vulnerable
Reasons: There is 1 very extensive population in northwestern Wyoming, and approximatly 13 occurrences in the state, and 9 in southwestern Montana. The species is dependent on bare slopes with little vegetation, on volcanic or limestone substrates - and is apparently intrinsically rare. Threats appear to be low, however, it is likely vulnerable to climate change given how tightly linked its reproduction is to environmental cues. Invasive species are also a likely threat.
Nation: United States
National Status: N3

U.S. & Canada State/Province Status
United States Montana (S2), Wyoming (S2)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: A regional endemic to the Absaroka Mountains of northwestern Wyoming and the Tendoy Mountains of southwestern Montana. Extent of occurrence is estimated at 18,200 sq km based on NatureServe element occurrence data (2013).

Area of Occupancy: 26-125 4-km2 grid cells
Area of Occupancy Comments: 78, 2x2 sq km grid cells were estimated based on NatureServe element occurrence data (2013).

Number of Occurrences: 6 - 80
Number of Occurrences Comments: Recent survey indicates that occurrence in the North Fork Shoshone River drainage is one large continuous population; it occurs only in this drainge in Wyoming from 13 occurrences (Mills and Fertig 2000), and in 9 occurrences in Montana (Vanderhorst and Heidel 1998).

Population Size Comments: There are over 10,000 individuals estimated in Montana alone, but occupying less than 1,000 acres (1999). In Wyoming, the North Fort Shoshone River drainage has approximately 4,000 individuals across 185 acres, however, this is probably a conservative estimate and numbers are closer to 10,000 (Mills and Fertig 2000).

Overall Threat Impact Comments: Threats are considered low or moderate because of its inaccessible and rugged habitat. Some low elevation populations might be impacted by road and trail development (Mills and Fertig 2000).
Its habitat is relatively inaccessible except in the Grasshopper Creek drainage, but there is potential threat of spotted knapweed invasion at most Montana sites. Genetic variability in other narrowly restricted Lomatium has been reported to be low (Vanderhorst and Heidel 1998). Finally, climate change is a threat given that its reproduction is highly dependent on cool spring temperatures and rainfall occurring in May and June, and annual temperatures are expected to be between 2.5 - 5 degrees warmer (Vanderhorst and Heidel 1998, ClimateWizard 2013a).

Short-term Trend: Relatively Stable (<=10% change)
Short-term Trend Comments: Trend information is not available, however, Mills and Fertig (2000) say that because of the rugged nature of the habitat the low threats this species is probably stable.

Long-term Trend: Unknown

Intrinsic Vulnerability Comments: The habitat is fairly resilient, but critical successional status and vernal conditions may be more vulnerable. Is highly dependent on cool spring temperatures: it completes its growth and reproduction between May and June, when it is cool and rainfalls is it at its peak (Vanderhorst and Heidel 1998), and annual temperatures are expected to be between 2.5 - 5 degrees warmer (ClimateWizard 2013a). With that said, however, it has a deep, tough rootstock, to withstand drought years (Vanderhorst and Heidel 1998).

Environmental Specificity: Narrow. Specialist or community with key requirements common.
Environmental Specificity Comments: Occurs only on volcanic or limestone scree in sagebrush grasslands, grassland, open Douglas-fir woodlands, and riparian creek bottom communities (Mills and Fertig 2000).

Other NatureServe Conservation Status Information

Distribution
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Global Range: A regional endemic to the Absaroka Mountains of northwestern Wyoming and the Tendoy Mountains of southwestern Montana. Extent of occurrence is estimated at 18,200 sq km based on NatureServe element occurrence data (2013).

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States MT, WY

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
MT Beaverhead (30001), Madison (30057)
WY Park (56029)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
10 Red Rock (10020001)+, Beaverhead (10020002)+, Ruby (10020003)+, Clarks Fork Yellowstone (10070006)+, North Fork Shoshone (10080012)+, South Fork Shoshone (10080013)+, Shoshone (10080014)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A taprooted perennial herb, 1-2.5 dm high, with 1 or 2 highly dissected, lace-like stem leaves. The foliage has a distinct celery odor when crushed. Many minute yellow flowers with 5 petals are borne in tight, flat-topped clusters at the the ends of 5-8 stalks in an umbrella-like cluster.
General Description: Taper-tip desert-parsley is a low, herbaceous perennial with stems reaching 7-25 cm in height and bearing 1-2 nearly prostrate leaves on the lower portion. The leaf stalks form a sheath around the stem and the blades are broadly lance-shaped (2-11 cm long) and 3-4 times divided into oblong-linear segments, each 2-5 mm in length. The foliage is roughened like sandpaper. Tiny yellow flowers are borne atop the stems in 5-8 open, umbrella-like clusters with stalks 1-5 cm in length. Each cluster is subtended by up to 6 pointed, linear, inconspicuous bracts, or involucels. Flowers have 5 separate petals atop an ovary that matures into a glabrous, elliptical, flattened fruit 5-8 mm long with corky wings (about. 0.5 mm wide) and a stalk that is 3-10 mm long.
Diagnostic Characteristics: LOMATIUM COUS is similar but has an involucel of conspicuous elliptical bracts and smooth foliage.
Reproduction Comments: Reproduction is only via seed production. Low fecundity, low numbers of flowers and seed set, have been reported, however, in at least one year, 1997, seed set was relavitely high (Vanderhorst and Heidel 1998). Flowers mid May-June, and fruit in early June - July (Mills and Fertig 2000).
Riverine Habitat(s): CREEK
Terrestrial Habitat(s): Grassland/herbaceous, Woodland - Conifer
Habitat Comments: Volcanic or limestone-derived scree and thin soil in sagebrush-grassland, grassland, open Douglas-fir (Pseudotsuga menziesii), and creek bottom communities. All sites have little herbaceous cover. 1615-2840 m.
Economic Attributes
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Economically Important Genus: Y
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: 06Sep2013
NatureServe Conservation Status Factors Author: Neighbours, M.L., rev. W. Fertig/K. Maybury (6/96), B. Heidel (1999), rev. L. Oliver (2013)
Element Ecology & Life History Edition Date: 06Nov1994
Element Ecology & Life History Author(s): JM

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.

  • 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.

  • Dorn, R. D. 1989. A report on the status of Lomatium attenuatum, a Candidate Threatened species. Prepared for the U.S. Fish and Wildlife Service by Mountain West Environmental Services, Cheyenne, WY.

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

  • Dorn, R.D. 1988. Vascular plants of Wyoming. Mountain West Publishing, Cheyenne, WY. 340 pp.

  • Dorn, R.D. 1989. Report on the status of Lomatium attenuatum, a candidate Threatened species. Unpublished report prepared for the U.S. Fish and Wildlife Service. 13 pp + appendices.

  • Evert, E. F. 1983. A new species of Lomatium (Umbelliferae) from Wyoming. Madroņo 30:143-146.

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

  • Evert, E.F. 1983. A new species of Lomatium (Umbelliferae) from Wyoming. Madrono 30: 143-146.

  • Fertig, W. 1997. Plant species of special concern on Shoshone National Forest: 1996 survey results. Unpublished report prepared by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. 1998. The status of rare plants on Shoshone National Forest: 1995-97 survey results. Unpublished report prepared for the Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • 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.

  • Heidel, B.L. and J. Vanderhorst. 1996. Sensitive Plant Surveys on the Butte District, Beaverhead and Madison Counties, MT. Unpublished report to the Bureau of Land Management. Montana Natural Heritage Program, Helena.

  • Jones, G. P. and W. Fertig. 1999. Ecological evaluation of the potential Grizzly Creek Research Natural Area within the Shoshone National Forest, Park County, Wyoming. Unpublished report prepared for the Shoshone National Forest, USDA Forest Service by the Wyoming Natural Diversity Database, Laramie, WY.

  • Jones, G. P. and W. Fertig. 1999. Ecological evaluation of the potential Pat O?Hara Mountain Research Natural Area within the Shoshone National Forest, Park County, Wyoming. Unpublished report prepared for the Shoshone National Forest, USDA Forest Service by the Wyoming Natural Diversity Database, Laramie, WY.

  • 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. 1988. Survey of sensitive plant species on Shoshone National Forest. Unpublished report prepared for Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Mills, S. and W. Fertig. 2000. State Species Abstract: Lomatium attenuatum. Wyoming Natural Diversity Database. Available on the internet at www.uwyo.edu/wyndd.

  • Mills, S. and W. Fertig. 1996. Field guide to rare and Sensitive plants of the Shoshone National Forest. Report prepared by the Wyoming Natural Diversity Database, Laramie, WY.

  • Mills, S., and W. Fertig. 1996. Field guide to rare and sensitive plants of the Shoshone National Forest. Unpublished report prepared by the Wyoming Natural Diversity Database, Laramie, WY. No pagination.

  • Mills, S., and W. Fertig. 2000a. Lomatium attenuatum. Absaroka biscuitroot. State Species Abstract. Wyoming Natural Diversity Database. Accessed online on Sept. 6, 2013 at: http://www.uwyo.edu/wyndd/_files/docs/reports/speciesabstracts/lomatium_attenuatum.pdf

  • Rosenthal, D. M. 1998. Report on a general floristic survey of vascular plants in selected areas of Shoshone National Forest. Unpublished report prepared for the Shoshone National Forest by the Rocky Mountain Herbarium, University of Wyoming, Laramie, WY.

  • Rosenthal, D. M. 1999. A floristic survey of selected areas in Shoshone National Forest, Wyoming. Masters Thesis. Department of Botany, University of Wyoming, Laramie, WY.

  • Vanderhorst, J. 1995. Sensitive plant survey of the Tendoy Mountains in the Beaverhead National Forest, Beaverhead County, Montana. Unpublished report to the Beaverhead National Forest. Montana Natural Heritage Program, Helena, MT. 69 pp.

  • Vanderhorst, J. 1995. Survey of Bannack State Park and vicinity for Montana plant species of special concern. Unpublished report to Bannack State Park, Montana Department of Fish, Wildlife, and Parks. Montana Natural Heritage Program, Helena, MT. 43 pp.

  • Vanderhorst, J. 1995b. Sensitive plant survey of the Tendoy Mountains in the Beaverhead National Forest, Beaverhead County, Montana. Unpublished report to the Beaverhead National Forest. Montana Natural Heritage Program, Helena, MT. 69 pp.

  • Vanderhorst, J. 1995c. Survey of Bannack State Park and vicinity for Montana plant species of special concern. Unpublished report to Bannack State Park, Montana Department of Fish, Wildlife, and Parks. Montana Natural Heritage Program, Helena, MT. 43 pp.

  • Vanderhorst, J. P. and P. Lesica. 1994. Sensitive plant survey in the Tendoy Mountains, Beaverhead County, Montana. Unpublished report to the Bureau of Land Management, Butte District. Montana Natural Heritage Program, Helena, MT. 59 pp. plus appendices.

  • Vanderhorst, J. P. and P. Lesica. 1994. Sensitive plant survey in the Tendoy Mountains, Beaverhead County, Montana. Unpublished report to the Bureau of Land Management, Butte District. Montana Natural Heritage Program, Helena, MT. 59 pp. plus appendices.

  • Vanderhorst, J. and B. Heidel. 1998a. Conservation status of Lomatium attenuatum in Montana. Unpublished report to the Bureau of Land Management. Montana Natural Heritage Program, Helena. 20 pp. +app.

  • Vanderhorst, J. and B.L. Heidel. 1998. Conservation status of LOMATIUM ATTENUATUM Evert in Montana. Unpublished report to the Bureau of Land Management. Montana Natural Heritage Program, Helena, MT. 20 pp + app.

  • Vanderhorst, J. and P. Lesica. 1994. Sensitive plant survey in the Tendoy Mountains, Beaverhead County, MT. Unpublished report to the Bureau of Land Management preparted by the Montana Natural Heritage Program, Helena. iv + 59 pp. plus appendices.

  • 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.

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