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§1 Plant

Cardamine douglassii Britton

vernacular limestone bittercress — species · Brassicaceae

USDA
CADO
GBIF
3045676
Rank
species
limestone bittercress (Cardamine douglassii)
Platephotograph · jodihannahCC BY-NC source · iNaturalist ↗

§2Habit & range

Habit and 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

· 361 counties across 19 states/territories
Legend Native · 361 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
High
Fire
Medium
Salinity
None
Anaerobic
High
CaCO₃
High
Hedging
None
§3b

Climate & soil

Cold tolerance
-33 °F minimum
Frost-free days
130 min.
Precipitation
24–55 in/yr
pH range
6–7.7
Root depth
10 in min.
Fertility need
High
Soil texture
coarse, medium, fine
§3c

Form & growth

Growth form
Rhizomatous
Growth rate
Moderate
Lifespan
Moderate
Mature height
1 ft
Foliage texture
Medium
Foliage colour
Green
Porosity (summer)
Porous
Porosity (winter)
Porous
Flower colour
Purple
Fruit colour
Brown
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Early Spring
Seed abundance
High
Seed begins
Spring
Seed ends
Spring
Spread rate
Moderate
Stratify
No
Seeds / lb
900,000
Propagation
seed, sprigs
§3e

Use & availability

Commercial availability
No Known Source
Nursery stock
No
Palatable, human
No
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 361 counties across 19 states/territories.

Alabama view state ↗ 2 N ▾
Arkansas view state ↗ 1 N ▾
District of Columbia view state ↗ 1 N ▾
Illinois view state ↗ 25 N ▾
Indiana view state ↗ 48 N ▾
Kentucky view state ↗ 53 N ▾
Massachusetts view state ↗ 1 N ▾
Michigan view state ↗ 38 N ▾
Missouri view state ↗ 10 N ▾
New Jersey view state ↗ 2 N ▾
New York view state ↗ 17 N ▾
North Carolina view state ↗ 5 N ▾
Ohio view state ↗ 80 N ▾
Pennsylvania view state ↗ 19 N ▾
Tennessee view state ↗ 17 N ▾
Vermont view state ↗ 1 N ▾
Virginia view state ↗ 14 N ▾
West Virginia view state ↗ 10 N ▾
Wisconsin view state ↗ 17 N ▾

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/CADO ↗

GBIF Backbone

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

gbif.org/species/3045676 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

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