Home/Species/ Cascade Rockcress

Arabis furcata

S. Wats.

Cascade Rockcress

G4Apparently Secure Found in 5 roadless areas NatureServe Explorer →

G4Apparently SecureGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.161219

Element CodePDBRA060M1

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single nation

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderCapparales

FamilyBrassicaceae

GenusArabis

Synonyms

Arabis furcata var. furcata

Other Common Names

Columbia Gorge rockcress (EN) fork-haired rockcress (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.

Taxonomic Comments

This is the record for Arabis furcata in the narrow sense, not including A. olympica. Flora of North America Editorial Committee (2010) recognizes Arabis olympica as a species distinct from A. furcata . "The striking differences in fruit width and orientation, stem indument, and seed and flower size support their maintenance as distinct species. Although both species grow in Washington, the range of A. olympica seems to be restricted to Clallam and Jefferson counties and is disjunct from Chelan, Kittitas, and Yakima counties, where A. furcata grows." (Flora of North America Editorial Committee 2010)

Conservation Status

Review Date2000-02-08

Change Date2001-01-25

Edition AuthorsMacBryde, Bruce

Range Extent Comments

Arabis furcata occurs from central Oregon into Washington in the Columbia River Gorge and the Cascade Mountains, on shady steep slopes, vertical cliffs, ridge crests, and in alpine meadows (Rollins 1993; Hitchcock and Cronquist 1974; Hitchcock et al. 1964).

Ecology & Habitat

Other Nations (1)

United StatesNNR

Province	Rank	Native
Washington	SNR	Yes
Oregon	S3	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (5)

Washington (5)

Area	Forest	Acres
Blue Slide	Wenatchee National Forest	17,505
Goat Rocks Adj	Wenatchee National Forest	6,108
Gotchen Creek	Gifford Pinchot National Forest	7,518
Manastash	Wenatchee National Forest	11,155
Quartz	Wenatchee National Forest	8,550

References (5)

Flora of North America Editorial Committee (FNA). 2010. Flora of North America north of Mexico. Vol. 7. Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York. xxii + 797 pp.
Hitchcock, C.L., A. Cronquist, M. Ownbey, and J.W. Thompson. 1964. Vascular plants of the Pacific Northwest. Part 2: Salicaceae to Saxifragaceae, by C.L. Hitchcock and A. Cronquist. Univ. Washington Press, Seattle. 597 pp.
Hitchcock, C.L., and A. Cronquist. 1974. Flora of the Pacific Northwest: An illustrated manual. 2nd printing, with corrections. Univ. Washington Press, Seattle. xix + 730 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.
Rollins, R.C. 1993a. The Cruciferae of continental North America: Systematics of the mustard family from the Arctic to Panama. Stanford Univ. Press, Stanford, California. 976 pp.