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Lomatium erythrocarpum

Meinke & Constance

Red-fruit Lomatium

G1Critically Imperiled (G1G2) Found in 1 roadless area NatureServe Explorer →
G1Critically ImperiledGlobal Rank
Very high - mediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.149411
Element CodePDAPI1B260
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderApiales
FamilyApiaceae
GenusLomatium
Other Common Names
Red-fruited Lomatium (EN)
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.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-05-20
Change Date2013-04-02
Edition Date2024-05-20
Edition AuthorsJoyal, E., rev. Vrilakas/Kagan/Maybury (1996), rev. K. Gravuer (2008), rev. Lindsey Wise (2012)., rev. J. Johnson (2024)
Threat ImpactVery high - medium
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences1 - 5
Rank Reasons
Lomatium erythrocarpum is endemic to a small, high-elevation area of the Blue Mountains of eastern Oregon, U.S.A. While only a few populations are known, they appear to be stable with an estimated total population of about 6,000 plants. Although there are some documented impacts from mountain goats, a non-native species introduced to the area in the 1980s, plant populations remain stable. Climate change is a major threat to this high-elevation species. Monitoring should continue to keep tabs on these threats.
Range Extent Comments
Lomatium erythrocarpum is endemic to the Elkhorn Range which spans Baker, Union, and Grant Counties, Oregon, U.S.A. Range extent was estimated at 8 km2 using a convex hull polygon applied to herbarium specimens, photo-based observations, and NatureServe Network occurrence data collected between 1993 and 2024 (CPNWH 2024, NatureServe 2024, SEINet 2024).
Occurrences Comments
By applying a 1 km separation distance to herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented between 1993 and 2024, it is estimated that there are four occurrences range-wide (CPNWH 2024, iNaturalist 2024, NatureServe 2024, SEINet 2024).
Threat Impact Comments
Threats to Lomatium erythrocarpum include hikers, trail maintenance crews, and non-native mountain goats, though these have so far had minimal impact on populations. Climate change may be the greatest threat leading to loss of alpine habitat (NatureServe 2024).
Ecology & Habitat

Habitat

This species grows in dry, moderately steep, south- and east-facing (full sun exposure) slopes and ridges. The substrate is sandy-stony soil, loose gravel, and talus, derived from granodiorite; distribution suggests an avoidance of calcareous substrates. It is generally found in open areas, in the ecotone between shrub-steppe vegetation, dominated by mountain mahogany (Cercocarpus ledifolius) and big sagebrush (Artemesia tridentata), and subalpine woodland, dominated by white-bark pine (Pinus albicaulis) and Engelmann's spruce (Picea engelmannii). Associated species include Lupinus caudatus, Polygonum phytolaccaefolium, Castilleja applegatei, Haplopappus lyallii, Linum lewisii, Lomatium cusickii, Viola purpurea, Pteryxia terebinthina, Kellogia galioides, Phlox austromontana, and Trisetum spicatum. It is a high elevation species, generally found above 2500 m, sometimes as low as 2300 m. (CPNWH 2024, ODFW 2024, NatureServe 2024, SEINet 2024).

Reproduction

Seeds are dispersed by wind and gravity (Meinke 1987 cited in Guerrant 2001).
Terrestrial Habitats
Forest EdgeWoodland - ConiferShrubland/chaparralBare rock/talus/scree
Other Nations (1)
United StatesN1
ProvinceRankNative
OregonS1Yes
Threat Assessments
ThreatScopeSeverityTiming
6 - Human intrusions & disturbanceSmall (1-10%)Moderate - slightHigh (continuing)
6.1 - Recreational activitiesSmall (1-10%)Moderate - slightHigh (continuing)
8 - Invasive & other problematic species, genes & diseasesPervasive (71-100%)Serious - slightHigh (continuing)
8.1 - Invasive non-native/alien species/diseasesPervasive (71-100%)Serious - slightHigh (continuing)
8.1.2 - Named speciesPervasive (71-100%)Serious - slightHigh (continuing)
11 - Climate change & severe weatherPervasive (71-100%)Serious - moderateModerate (short-term)
11.1 - Habitat shifting & alterationPervasive (71-100%)Serious - moderateModerate (short-term)

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Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)Yes
Roadless Areas (1)
Oregon (1)
AreaForestAcres
Twin MountainWallowa-Whitman National Forest58,533
References (12)
  1. Consortium of Pacific Northwest Herbaria (CPNWH). 2024. Online database of vascular plant specimens from the Pacific Northwest. Online. Available: http://www.pnwherbaria.org/index.php (accessed 2024).
  2. Flora of North America Editorial Committee (FNA). 2024. Flora of North America north of Mexico. Vol. 13. Magnoliophyta: Geraniaceae to Apiaceae. Oxford Univ. Press, New York. xxiv + 566 pp.
  3. Guerrant, E. 2001. National Collection Plant Profile: <i>Lomatium erythrocarpum, </i>Center for Plant Conservation. Online. Available: www.centerforplantconservation.org/ASP/CPC_ViewProfile.asp?CPCNum=2662 (Accessed 2008).
  4. 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.
  5. Meinke, R.J., and L. Constance. 1984. A new subalpine species of Lomatium (Umbelliferae) from eastern Oregon. Bull. Torrey Botanical Club 111(2): 222-226.
  6. NatureServe. 2024. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  7. Oregon Department of Fish and Wildlife (ODFW), Salem, Oregon. 2016. Oregon Conservation Strategy. Accessed 2024-05-20: https://www.oregonconservationstrategy.org
  8. Oregon Natural Heritage Information Center. 2008, 15 July last update. Oregon threatened or endangered plant field guide. Online. Available: http://oregonstate.edu/ornhic/plants/view_plants2.php (Accessed 2008).
  9. Southwest Environmental Information Network (SEINet). 2024. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2024).
  10. U.S. Fish and Wildlife Service (USFWS). 1995. Category and listing priority assignment form: <i>Lomatium erythrocarpum</i>. Lead Field Office: Boise, ID. 4 pp.
  11. U.S. Fish and Wildlife Service (USFWS). 1996. Endangered and threatened species; Notice of reclassification of 96 candidate taxa. Federal Register 61(40): 7457-7463. Feb. 28, 1996.
  12. Vrilakas, Sue. Personal Communication. Data manager and botanist. Oregon Biodiversity Information Center, Institute for Natural Resources, Portland State University, Portland, Oregon.