Arabis rigidissima var. rigidissima
Trinity Mountains rockcress
Family: Brassicaceae · Type: Subshrub
Conservation status: CNPS 1B.3
Arabis rigidissima var. rigidissima (Trinity Mountains rockcress) is a California subshrub in the Brassicaceae family.
I apologize, but I cannot generate a description because the provided plant data is incomplete. The key sections that would help create an accurate description are blank or missing: - Common Name - Plant Type - Native Status - Bioregional Distributions - Elevation Range - Habitat - Flowering Time - Jepson Description Without these critical pieces of information, I cannot construct a description that follows the established rules and provides meaningful botanical details about Arabis rigidissima var. rigidissima. To generate an accurate description, I would need the full set of botanical data for this plant variety. Note: Jepson eFlora does not treat this as a distinct taxon; it considers it a synonym of Boechera rigidissima.
Identification and appearance
Key characters: Differentiators are not available at this time.
Conservation status
CNPS 1B.3
How to tell it apart
vs Boechera: Arabis pods are narrower (under 2mm vs 2mm+) and consistently straight; Boechera pods are often curved.; vs Matthiola: Arabis has stalked star-shaped hairs and erect narrow pods; Matthiola has soft unbranched hairs and stouter pods.; vs Raphanus: Arabis has tiny star-shaped hairs and thin erect pods; Raphanus has larger flowers and thick beaded pods.; vs Pelargonium: Arabis has four petals and narrow upright pods; Pelargonium has five petals and beak-like fruits.; vs Phlox: Arabis has four separate petals and seed pods; Phlox has fused tubular flowers and capsules.
Frequently asked questions
What plant family does Arabis rigidissima var. rigidissima belong to?
Arabis rigidissima var. rigidissima is in the Brassicaceae family, genus Arabis.
Is Arabis rigidissima var. rigidissima rare or endangered?
Arabis rigidissima var. rigidissima carries California Rare Plant Rank 1B.3, state rank S3.
Related species
Other California species in the same genus, family, or bioregion.
- Arabis sp. — Rockcress
- Arabis aculeolata — Waldo rockcress
- Arabis blepharophylla — Coast rockcress
- Arabis eschscholtziana — Eschscholtz's hairy rockcress
- Arabis mcdonaldiana — Mcdonald's rockcress
- Arabis modesta — Modest rockcress
- Armoracia rusticana — Horse radish
- Armoracia sp.
- Athysanus pusillus — Athysanus
Last updated 2026-10-07
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.