Arabis petiolaris (A. Gray) A. Gray
Brazos Rockcress, Rock-cress, Brazos Rock-cress
Brassicaceae (Mustard Family)
Synonym(s): Erysimum petiolare, Streptanthus brazoensis, Streptanthus petiolaris
USDA Symbol: ARPE4
From the Image Gallery
Plant CharacteristicsDuration: Annual
Fruit Type: Silique
Size Notes: Up to about 4 feet tall.
Bloom InformationBloom Color: White , Purple
Bloom Time: Mar , Apr , May
Bloom Notes: White to pale lavender.
Native Habitat: Endemic to central Texas in sandy or rocky soil of open woods, rocky knolls, wooded bluffs, among boulders and along roadsides. Especially abundant in Llano and Burnet counties.
Growing ConditionsLight Requirement: Sun
BenefitConspicuous Flowers: yes
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Lady Bird Johnson Wildflower Center - Austin, TX
Brackenridge Field Laboratory - Austin, TX
Herbarium Specimen(s)NPSOT 0737 Collected May 8, 1993 in Bexar County by Harry Cliffe
NPSOT 1096 Collected Apr 23, 1997 in Bexar County by Harry Cliffe
Wildflower Center Seed BankLBJWC-JHJ-2 Collected 2009-05-24 in Hays County by Lady Bird Johnson Wildflower Center
BibliographyBibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.
Search More Titles in Bibliography
Web ReferenceWebref 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 resourcesUSDA: Find Arabis petiolaris in USDA Plants
FNA: Find Arabis petiolaris in the Flora of North America (if available)
Google: Search Google for Arabis petiolaris
MetadataRecord Modified: 2022-11-23
Research By: NPC