Index / Search / Cardamine breweri var. breweri

§1 Plant

Cardamine breweri S. Watson var. breweri

vernacular Brewer's bittercress — variety · Brassicaceae

USDA: CABRB
GBIF: 3045946 syn.
Rank: variety

Brewer's bittercress (Cardamine breweri var. breweri) — Platephotograph · Patricia TeagueCC BY-NC source · iNaturalist ↗

§2Habit & range

Growth habit: Forb/herb
Duration: Perennial
Group: Dicot
Family: Brassicaceae Burnett
Genus: Cardamine

§2a

Native status, by region

CAN Canada Native
L48 Lower 48 States Native

§2b

County-level range

· 24 counties across 6 states/territories

Legend Native · 24 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought: None
Shade: Low
Moisture use: Medium
Fire: Medium
Salinity: None
Anaerobic: Medium
CaCO₃: Medium
Hedging: None

§3b

Climate & soil

Cold tolerance: -18 °F minimum
Frost-free days: 130 min.
Precipitation: 16–55 in/yr
pH range: 5.6–7
Root depth: 10 in min.
Fertility need: Medium
Soil texture: medium

§3c

Form & growth

Growth form: Rhizomatous
Growth rate: Moderate
Lifespan: Moderate
Mature height: 1.8 ft
Foliage texture: Medium
Foliage colour: Green
Porosity (summer): Porous
Porosity (winter): Porous
Flower colour: White
Fruit colour: Black
Fire resistant: No
N fixation: None
Toxicity: None

§3d

Reproduction

Bloom period: Late Spring
Seed abundance: High
Seed begins: Spring
Seed ends: Summer
Spread rate: Moderate
Stratify: No
Seeds / lb: 1,600,000
Propagation: seed, sprigs

§3e

Use & availability

Commercial availability: No Known Source
Nursery stock: No
Browse palatability: Medium
Graze palatability: Low
Palatable, human: No
Protein potential: Medium
Lumber: No
Christmas tree: No

§4Counties, by state

Recorded in 24 counties across 6 states/territories.

California view state ↗ 6 N ▾

Idaho view state ↗ 4 N ▾

Nevada view state ↗ 4 N ▾

Oregon view state ↗ 2 N ▾

Utah view state ↗ 7 N ▾

Washington view state ↗ 1 N ▾

Pend Oreille 53051

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/CABRB ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/3045946 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T20:46:58Z