Douglasia laevigata - Gray
Cliff Douglasia
Other English Common Names: Cliff Dwarf-primrose, smooth dwarf primrose
Other Common Names: cliff dwarf-primrose
Taxonomic Status: Accepted
Related ITIS Name(s): Douglasia laevigata Gray (TSN 23978)
French Common Names: douglasie glabre
Unique Identifier: ELEMENT_GLOBAL.2.132465
Element Code: PDPRI04030
Informal Taxonomy: Plants, Vascular - Flowering Plants - Primrose Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Primulales Primulaceae Douglasia
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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: Douglasia laevigata
Taxonomic Comments: Flora of North America (vol. 8, 2009) lumps subspecific taxa.
Conservation Status
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NatureServe Status

Global Status: G3
Global Status Last Reviewed: 23Jun2016
Global Status Last Changed: 13Jan2000
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G3 - Vulnerable
Reasons: In general, this species appears to be uncommon or rare but grows in inaccessible and self-protected areas. Exact plant numbers are hard to estimate since the plants can grow into large mats when conditions allow.
Nation: United States
National Status: NNR
Nation: Canada
National Status: N2N3 (23Jun2016)

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 Oregon (SNR), Washington (SNR)
Canada British Columbia (S3S4)

Other Statuses

Committee on the Status of Endangered Wildlife in Canada (COSEWIC): Candidate (Low) (26Jan2015)

NatureServe Global Conservation Status Factors

Range Extent Comments: Douglasia can be found in Oregon, Washington and British Columbia, with the typical variety (var. laevigata) being restricted to the Columbia River Gorge of Washington and Oregon. The wider ranging Douglasia laevigata var. ciliolata is known from the Coast Range of Oregon, the Olympic Mountains of Washington, the west Cascades of Washington and northern Oregon, Vancouver Island and the Queen Charlotte Islands of British Columbia, and southwestern Alberta.

Number of Occurrences: 21 - 80
Number of Occurrences Comments: There are about 25 known sites in the Columbia Gorge area of Washington and Oregon but probably many more that are inaccessible (Jolley pers. comm). There are another known eight populations in the Oregon Coast Range and northern Cascade Mountains. Population numbers for Washington and British Columbia are not known although it is on the Washington Natural Heritage Program's (1997) Watch List (more abundant and/or less threatened in Washington than previouly assumed). British Columbia (1999 internet home page) consideres it "R1" (single or few populations, composed of few plants).

Population Size Comments: Plant or mat numbers in Oregon total less than 100. However, most of the reports do not give specific numbers.

Overall Threat Impact Comments: Threats are from natural erosion and rock climbers. Douglasia laevigata is also noted as a rock garden species (Olson pers. comm. 1999) and can be seen on various internet sites (Vrilakas pers comm. 1999). Casual collecting, at least in Oregon, does not appear to be a threat since most populations are rather inaccessible, unless one is adept at rock climbing.

Short-term Trend: Relatively Stable (<=10% change)
Short-term Trend Comments: Populations are assumed to be stable. Many of the sites are self-protected on hard-to-reach, steep cliff faces.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Douglasia can be found in Oregon, Washington and British Columbia, with the typical variety (var. laevigata) being restricted to the Columbia River Gorge of Washington and Oregon. The wider ranging Douglasia laevigata var. ciliolata is known from the Coast Range of Oregon, the Olympic Mountains of Washington, the west Cascades of Washington and northern Oregon, Vancouver Island and the Queen Charlotte Islands of British Columbia, and southwestern Alberta.

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 OR, WA
Canada BC

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
OR Clackamas (41005), Clatsop (41007), Deschutes (41017), Hood River (41027), Linn (41043)*, Marion (41047), Tillamook (41057)*
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
17 Middle Columbia-Hood (17070105)+, Upper Deschutes (17070301)+, Lower Columbia (17080006)+, Mckenzie (17090004)+*, North Santiam (17090005)+, South Santiam (17090006)+*, Molalla-Pudding (17090009)+, Clackamas (17090011)+, Wilson-Trusk-Nestuccu (17100203)+*
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: Herbaceous, dicot, mat-forming plant with deep, pink-rose colored flowers
Habitat Comments: Douglasia laevigata grows in rock crevices on vertical faces of basalt cliffs, rock outcrops and talus slopes, from mountain ridges to coastal bluffs.
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: 27Dec1999
NatureServe Conservation Status Factors Author: Vrilakas, Sue

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
  • Batten, R. 2018. Vascular plant GeoCAT range extent and index of AOO maps supporting status assessment 2017_18 for British Columbia Conservation Data Centre. March 2018. Victoria, BC. 450 pp.

  • British Columbia Conservation Data Centre. Botany Program. 2000. Database containing records of rare plant collections and observations in the province of British Columbia.

  • Douglas, G.W., D. Meidinger, and J. Penny. 2002. Rare Native Vascular Plants of British Columbia, 2nd ed. B.C. Conserv. Data Centre, Terrestrial Inf. Branch, Victoria. 358pp.

  • Douglas, G.W., D. Meidinger, and J. Pojar, eds. 1999. Illustrated Flora of British Columbia, Vol. 4, Dicotyledons (Orobanchaceae through Rubiaceae). B.C. Minist. Environ., Lands and Parks, and B.C. Minist. For., Victoria. 427pp.

  • Douglas, G.W., G.B. Straley, and D. Meidinger, eds. 1998. Rare Native Vascular Plants of British Columbia. Conserv. Data Centre, Resour. Inventory Branch, B.C. Minist. Environ., Lands and Parks, Victoria, and B.C. Minist. For., Victoria.

  • Flora of North America Editorial Committee. 2009. Flora of North America North of Mexico. Vol. 8. Magnoliophyta: Paeoniaceae to Ericaceae. Oxford University Press, New York. xxiv + 585 pp.

  • 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.

  • Washington Natural Heritage Program. 1997. Endangered, Threatened and Sensitive Vascular Plants of Washington - with Working Lists of Rare Non-Vascular Species. Department of Natural Resources. Olympia. 62 p.

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