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Waldo rockcress
Scientific Name: Arabis aculeolata
Family: Brassicaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Arabis aculeolata: Waldo Rockcress
Arabis aculeolata, commonly known as Waldo rockcress, is a flowering plant belonging to the mustard family.
Considerations for Pets
- This is a forb/herb (a non-woody plant that is not a grass).
- Leaves are in a basal rosette
Taxonomy and Nomenclature
- Scientific Name: Arabis aculeolata Greene
- Common Name: Waldo rockcress
- Family: Brassicaceae (mustards, moutardes, crucifers)
- Order: Brassicales
- Genus: Arabis L. (rockcress)
- Rank: Species
- Symbol: ARAC4 (USDA Plants database)
Distribution and Habitat
- Native to a small range in the mountains.
- Specifically found in southwestern Oregon, chiefly in serpentine soil.
- Observed near Rough & Ready Creek near Cave Junction, Oregon.
- Found in the Rogue River-Siskiyou National Forest, Illinois River Trail, Selma, OR.
- Specifically mentioned in the Eight Dollar Mountain Botanical Area, Josephine County, OR.
- Also found north of the 1850s mining town of Waldo, Oregon.
Morphological Characteristics
- Perennial herb.
- Erect stems with spreading hairs on the lower part.
- Leaves in basal rosette, 1/2–1 inch in size, entire, surface densely coated with hairs.
- McDonald’s rock cress, a similar plant, has relatively large, conspicuous lavender flowers, while Waldo Rockcress is hairy and taller.
Cultivation
- Requires feeding with a slow-release granular fertilizer in the spring.