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Oregon rockcress
Scientific Name: Arabis oregana
Family: Brassicaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Oregon Rockcress (Arabis oregana)
Oregon Rockcress, scientifically known as Arabis oregana, is a native perennial herb found in certain regions of the United States.
Considerations for Pets
- As a perennial herb, Oregon Rockcress is non-woody. This information may be useful for owners of pets that tend to nibble on plants.
Considerations for Children
- As a perennial herb, Oregon Rockcress is non-woody. This information may be useful for parents of small children who might interact with plants.
Taxonomy and Nomenclature
- Scientific Name: Arabis oregana Rollins
- Common Names: Oregon Rockcress, Oregon Rock Cress
- Family: Brassicaceae
- Arabis oregana is a dicot.
- Synonyms: While the text doesn't directly list synonyms for Arabis oregana, it does mention several other Arabis species and their synonyms, suggesting taxonomic relationships within the genus.
Distribution and Habitat
- Oregon Rockcress is native to California and Oregon.
- It is considered rare in both Oregon and California.
- McDonald's Rockcress (Arabis macdonaldiana), also mentioned in the text, grows on newly exposed, barren serpentine in Del Norte County, California and Josephine and Curry Counties, Oregon. This gives some context as to where other rockcresses might grow.
Morphological Characteristics and Growth Habits
- Arabis oregana is described as a forb/herb, which means it's a non-woody plant that isn't a grass.
- It is a perennial plant subject to some months of vegetational rest, implying seasonal growth patterns.
Quirky Facts
- The text mentions several streets named "Rockcress Rd" in Eugene, Oregon. This suggests that the plant, or at least the name "Rockcress", is locally significant.
Related Species
- The provided text mentions several other rockcress species, highlighting the diversity within the Arabis and related genera (Boechera):
- McDonald's Rockcress (Arabis macdonaldiana) - Federally listed as endangered.
- Waldo Rockcress (Arabis aculeolata)
- Eschscholtz's Hairy Rockcress (Arabis eschscholtziana) also referred to as A. hirsuta v. eschscholtziana
- Brewer's Rockcress (Boechera breweri ssp. breweri)
- Wind River Rockcress (Boechera williamsii)
- Cusick's Rockcress (Boechera cusickii)
- Howell's Flat-seed Rock Cress (Boechera howellii)
- Purple Rockcress (Aubrieta deltoidea)
Further Resources
- Discover Life: The text references Discover Life's page on the biology, natural history, ecology, identification, and distribution of Arabis oregana.
- Oregon Flora Project: The Oregon Flora Project is mentioned as a source for information on Arabis oregana, including images.
- Dave's Garden: The text welcomes readers to Dave's Garden, a community for sharing gardening tips and information.
- USFWS Oregon Fish and Wildlife Office: This office is mentioned in relation to the endangered McDonald's rockcress, suggesting they may have further information on other rockcress species in the region.