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Smith, R.W.

Arabis lyrata

Arabis lyrata L.

Lyrate Rockcress, Lyre-leaf Rockcress

Brassicaceae (Mustard Family)

Synonym(s): Arabidopsis lyrata, Arabis lyrata var. glabra

USDA Symbol: ARLY2

USDA Native Status: L48 (N), AK (N), CAN (N)

An erect stem rising from a rosette of basal leaves with a terminal cluster of small, white or greenish-white flowers.

Other common members of this genus are Hairy Rockcress (A. hirsuta), with a basal rosette of hairy, oblong leaves, clasping stem leaves, and pods that are erect or pressed against the stem; and Smooth Rockcress (A. laevigata), with smooth, lanceolate, clasping leaves and down-curved or horizontal pods.

From the Image Gallery

5 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Biennial
Habit: Herb
Fruit Type: Silique
Size Notes: Up to about 20 inches tall.

Bloom Information

Bloom Color: White
Bloom Time: Apr , May , Jun , Jul

Distribution

USA: AK , CT , DC , DE , GA , IA , IL , IN , KY , MA , MD , MI , MN , MO , MS , NC , NJ , NY , OH , PA , TN , VA , VT , WI , WV
Canada: AB , ON , SK
Native Distribution: Alberta east to Quebec, south to North Carolina, west through Tennessee to Missouri, and north to Minnesota.
Native Habitat: Cliffs, ledges, and in gravelly or sandy soil.

National Wetland Indicator Status

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:	FACU	FACU	FACU		FACU			FACU	FACU	FACU

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Natural Biodiversity - Johnstown, PA

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Arabis lyrata in USDA Plants
FNA: Find Arabis lyrata in the Flora of North America (if available)
Google: Search Google for Arabis lyrata

Metadata

Record Modified: 2023-03-09
Research By: TWC Staff

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