Home/Species/ Oregon Sullivantia

Sullivantia oregana

S. Wats.

Oregon Sullivantia

G2Imperiled Found in 3 roadless areas NatureServe Explorer →

G2ImperiledGlobal Rank

MediumThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.148653

Element CodePDSAX0X020

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single nation

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderRosales

FamilySaxifragaceae

GenusSullivantia

Other Common Names

Oregon Coolwort (EN) Oregon coolwort (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 MethodLegacy Rank calculation - Excel v3.1x

Review Date2015-01-30

Change Date1991-02-08

Edition Date1996-09-27

Edition AuthorsGamon, J. & K. Maybury, rev. A. Olivero (2003), rev. A. Tomaino (2015)

Threat ImpactMedium

Range Extent1000-5000 square km (about 400-2000 square miles)

Number of Occurrences6 - 20

Rank Reasons

Endemic to the lower Willamette River area and to the Columbia River Gorge. There are approximately 16 occurrences extant, most in Oregon, two in Washington. Threats include alterations to hydrology and rock climbing. In general, this plant is protected from human impacts because of its inaccessible cliff habitats.

Range Extent Comments

Occurs in the western Columbia River Gorge in Washington and adjacent Oregon, and the lower Willamette Valley in Oregon (WNHP 2003, Camp and Gamon 2011).

Occurrences Comments

Approximately 14 to 17 extant occurrences in Oregon and two in Washington (EO data in the NatureServe Central Database as of January 2015).

Threat Impact Comments

Threats include alterations to hydrology, collecting, rock climbing and other recreational use (Meinke 1982; WNHP 2003, Camp and Gamon 2011). One site is threatened by land development (Meinke 1982; EO data in the NatureServe central database as of January 2015). Invasive plants may be a threat at one site (EO data in the NatureServe central database as of January 2015). The cliff habitat of this species is relatively inaccessible.

Ecology & Habitat

Habitat

Basaltic cliffs, typically near waterfalls (Flora of North America Editorial Committee 2009). Surrounding forest dominated by Douglas fir (Oregon Flora Project 2011). Moist, shaded cliffs and ledges, or among boulders. Often found under waterfalls or within their spray zone. Associated species include cow parsnip (Heracleum maximum), dentate shooting star (Dodecatheon dentatum), youth-on-age (Tolmiea menziesii), and trillium-leaved wood sorrel (Oxalis trillifolia).

Terrestrial Habitats

Forest/WoodlandForest - ConiferBare rock/talus/screeCliff

Palustrine Habitats

HERBACEOUS WETLANDRiparian

Other Nations (1)

United StatesN2

Province	Rank	Native
Oregon	S2	Yes
Washington	S1	Yes

Threat Assessments

Threat	Scope	Severity	Timing
1 - Residential & commercial development	Small (1-10%)	Slight or 1-10% pop. decline	—
5 - Biological resource use	Small (1-10%)	Slight or 1-10% pop. decline	—
5.2 - Gathering terrestrial plants	Small (1-10%)	Slight or 1-10% pop. decline	—
6 - Human intrusions & disturbance	Restricted (11-30%)	Moderate or 11-30% pop. decline	—
6.1 - Recreational activities	Restricted (11-30%)	Moderate or 11-30% pop. decline	—
7 - Natural system modifications	Restricted (11-30%)	Moderate or 11-30% pop. decline	—
7.2 - Dams & water management/use	Restricted (11-30%)	Moderate or 11-30% pop. decline	—
8 - Invasive & other problematic species, genes & diseases	Small (1-10%)	Slight or 1-10% pop. decline	—
8.1 - Invasive non-native/alien species/diseases	Small (1-10%)	Slight or 1-10% pop. decline	—

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (3)

Oregon (2)

Area	Forest	Acres
Eagle	Mt. Hood National Forest	16,841
Larch	Mt. Hood National Forest	12,961

Washington (1)

Area	Forest	Acres
Bear Creek	Gifford Pinchot National Forest	7,980

References (10)

Camp, P., and J.G. Gamon, eds. 2011. Field Guide to the Rare Plants of Washington. Washington Natural Heritage Program and Washington State Department of Natural Resources. University of Washington Press, Seattle. 408 pp.
Flora of North America Editorial Committee (FNA). 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.
Meinke, R.J. 1982. Threatened and Endangered Vascular Plants of Oregon: An Illustrated Guide. U.S. Fish and Wildlife Service, Region 1, Portland, Oregon. 326 pp.
Oregon Flora Project. 2011. Rare Plant Guide. Online. Available: http://www.oregonflora.org/rareplants.php?#sr (Accessed 2015).
Peck, M.E. 1961. A manual of the higher plants of Oregon. 2nd edition. Binsford & Mort, Portland, Oregon. 936 pp.
Washington Natural Heritage Program. 1981. An illustrated guide to the endangered, threatened and sensitive vascular plants of Washington. Washington Natural Heritage Program, Olympia. 328 pp.
Washington Natural Heritage Program. 1994. Endangered, threatened and sensitive vascular plants of Washington. Dept. of Natural Resources, Olympia, Washington. 52 pp.
Washington Natural Heritage Program and USDI Bureau of Land Management (BLM). 2003. Field guide to selected rare plants of Washington. Online. Available: http://www.dnr.wa.gov/nhp/refdesk/fguide/htm/fsfgabc.htm. Accessed 2003, May 9.
Washington Natural Heritage Program (WNHP) and Bureau of Land Management (BLM). 1999. Field guide to selected rare vascular plants of Washington. Washington Department of Natural Resources.

Sullivantia oregana

Habitat

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