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Lomatium serpentinum

(M.E. Jones) Mathias

Snake Canyon Desert-parsley

G4Apparently Secure Found in 5 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
UnknownThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.155456
Element CodePDAPI1B1T0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderApiales
FamilyApiaceae
GenusLomatium
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 Date2023-07-20
Change Date1988-05-05
Edition Date2023-07-20
Edition AuthorsTomaino, A. (2023)
Threat ImpactUnknown
Range Extent20,000-200,000 square km (about 8000-80,000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Lomatium serpentinum is known from the Snake River drainage in southeastern Washington, western Idaho, and eastern Oregon. It is estimated that there are between 21 and 80 occurrences. Threats include development and climate change.
Range Extent Comments
Lomatium serpentinum is known from the Snake River drainage in southeastern Washington, western Idaho, and eastern Oregon (WNHP 2023). Range extent was estimated using herbarium specimens and NatureServe Network occurrence data collected between 1982 and 2023 (CPNWH 2023, GBIF 2023, iNaturalist 2023, NatureServe 2023).
Occurrences Comments
By applying a 1 km separation distance to herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented between 1982 and 2023, it is estimated that there are between 21 and 80 occurrences rangewide (CPNWH 2023, GBIF 2023, iNaturalist 2023, NatureServe 2023). In Washington state, the species is known from 13 occurrences, of which five are extant (most recently observed in 2021) and eight historical (WNHP 2023).
Threat Impact Comments
Threats in Washington state include reservoir development, agricultural development, and livestock grazing, though its rocky habitat somewhat limits access by grazing animals (WNHP 2023). Found to be highly vulnerable to climate change in Washington state (Fertig 2021).
Ecology & Habitat

Habitat

Lomatium serpentinum is found on open, dry, often rocky slopes, and lowland valleys to the montane zone (Wildflower Center 2021). It grows in moderately deep sandy or rocky soil; mostly within rock crevices or clefts on open, moderate to steep slopes, on old floodplains, atop granite outcrops, on basaltic ledges along rapids, and on basalt talus, usually in sparsely vegetated areas with no overstory (WNHP 2023).
Terrestrial Habitats
Bare rock/talus/scree
Other Nations (1)
United StatesN4
ProvinceRankNative
IdahoSNRYes
WashingtonS2Yes
OregonS4Yes
Threat Assessments
ThreatScopeSeverityTiming
2 - Agriculture & aquacultureUnknownModerate or 11-30% pop. decline—
2.3 - Livestock farming & ranchingUnknownModerate or 11-30% pop. decline—
7 - Natural system modificationsUnknownExtreme - serious—
7.2 - Dams & water management/useUnknownExtreme - serious—
11 - Climate change & severe weatherLarge (31-70%)UnknownUnknown

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Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)Yes
Roadless Areas (5)
Oregon (5)
AreaForestAcres
BuckhornWallowa-Whitman National Forest17,180
Cook RidgeWallowa-Whitman National Forest19,617
Imnaha FaceWallowa-Whitman National Forest29,575
Mountain SheepWallowa-Whitman National Forest19,457
Snake RiverWallowa-Whitman National Forest31,229
References (11)
  1. Consortium of Pacific Northwest Herbaria (CPNWH). 2023. Specimen Database. Online. Available: http://www.pnwherbaria.org/data/search.php (accessed 2023).
  2. Fertig, W. 2021. Climate Change Vulnerability Index Report: <i>Lomatium serpentinum </i>(Snake Canyon biscuitroot). Washington Natural Heritage Program. [https://www.dnr.wa.gov/publications/amp_nh_ccvi_lose2.pdf]
  3. Fertig, W., and J. Kleinknecht. 2020. Conservation status and protection needs of priority plant species in the Columbia Plateau and East Cascades ecoregions Prepared for U.S. Fish and Wildlife Service, Region 1. Natural Heritage Report 2020-02. Prepared January 27, 2020. Washington Natural Heritage Program Washington Department of Natural Resources Olympia, Washington. 173 pp. [https://www.dnr.wa.gov/publications/amp_nh_priority_species_cp_ec_ecoregions.pdf]
  4. 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.
  5. Global Biodiversity Information Facility (GBIF). 2023. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2023).
  6. iNaturalist. 2023. Online. Available: https://www.inaturalist.org (accessed 2023).
  7. 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.
  8. NatureServe. 2023. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  9. Soltis, P.S., D.E. Soltis, and T.L. Norvell. 1997. Genetic diversity in rare and widespread species of <i>Lomatium </i>(Apiaceae). Madroño 44(1): 59-73.
  10. Washington Natural Heritage Program (WNHP). 2023. Online Field Guide to the Rare Plants of Washington. Online. Available: https://fieldguide.mt.gov/wa (accessed 2023).
  11. Wildflower Center. 2021. Native Plant Database: <i>Lomatium serpentinum</i>. Lady Bird Johnson Wildflower Center, University of Texas, Austin. Accessed: September 20, 2022. https://www.wildflower.org/plants/result.php?id_plant=LOSE2