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Wind River rockcress
Scientific Name: Arabis williamsii
Family: Brassicaceae
Category: Dicot
Growth: Forb/herb
Duration: Biennial, Perennial
Other Names:
Wind-river Rockcress: An Overview
This page provides information about the Wind-river Rockcress, a plant with interesting taxonomic history and a unique distribution.
Nomenclature and Taxonomy
- Scientific Name: Boechera saximontana
- Common Name: Wind River Rockcress
- Kingdom: Plantae
- Taxonomic Rank: Variety
- Family: Brassicaceae
- Synonyms:
- Arabis williamsii Rollins
- Arabis williamsii var. williamsii
- Boechera williamsii
- Arabis pendulocarpa var. saximontana
- Arabis williamsii Rollins var. williamsii
- Alternative Scientific Names:
- Arabis williamsii
Distribution and Habitat
- The Wind River Rockcress is primarily found in the southern foothills of the Wind River Range in Wyoming.
- Specifically, the Fremont County Rockcress (Boechera pusilla), a related species, is a state endemic restricted to this area.
Morphological Characteristics
- The Wind River Rockcress is a perennial herb.
- It is described as a forb/herb, which means it is a non-woody plant that is not a grass.
- The plant gives origin to a brush with a rounded form.
Ecological Role
- Georgia rockcress often grows on steep river bluffs, potentially benefiting from leaf litter or canopy gap dynamics created by wind-thrown trees.
Further Resources
- USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.
- Discover Life's page about the biology, natural history, ecology, identification and distribution of Arabis williamsii - Wind River rockcress.