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Limestone Bittercress

Cardamine douglassii

Found in nutrient-rich, moist forests, especially alluvial bottomlands, and in nutrient-rich seepages. FloraQuest, phone app (app page) What its natural habitat tells you

51
Strong

Native to Alabama. How scores work Is it native here?

Profile 100%

Height
About 1 foot
Light
Partial shade, Full shade
Soil moisture
Moist to standing water
Will it fit your yard?

Rare or protected plant. Specialist conservation planting; excluded from routine garden suggestions. Plant caution source

Hidden from default planting suggestions. Wildlife value and native status remain unchanged.

At a glance

Bloom
February and April
Fruiting season
April to May

Not yet recorded · Spread · Life cycle · Leaves

Recorded in 8 Alabama counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 3

Moist forests

Forests on moist but not wet ground, such as rich slopes and ravines.

Floodplain and bottomland forests

Forests on low ground beside rivers and streams that flood from time to time.

Seeps and springs

Places where groundwater keeps the soil or rock wet, such as seepage slopes and spring runs.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

3CaterpillarsGenus host records with ranges including AL

Genus host records with ranges including AL · Cardamine

  • Anthocharis mideaFalcate Orangetip
  • Ascia monusteGreat Southern White
  • Pieris virginiensisWest Virginia White
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
12BeesSoutheastern regional records

Southeastern regional records · Cardamine

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
1Specialist beesPollen specialists

Pollen specialists · Cardamine

  • Andrena arabis
Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
1BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Cardamine

  • Lagopus lagopusWillow Ptarmigan
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Brassicaceae
Flower color
Purple
Growth rate
Moderate
Growth habit
Spreads by rhizomes
Foliage color
Green
Fruit begins
April
Fruit ends
May
Growing sources and scope
  • Bloom · “Late February to early April” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
  • Flower color · “Purple” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Foliage color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit begins · “April” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
  • Fruit ends · “May” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
  • Growth habit · “Spreads by rhizomes” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Growth rate · “Moderate” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Height · “About 1 foot” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Light · “Partial shade; Full shade (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
  • primary_flower_color · “purple” · USDA PLANTS
  • Soil · “Moist; Water; Wet (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
Also known as

Douglass Bittercress; Purple Cress

Conservation status

Alabama rankS2S3
Global rankG5
AL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

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How to check your spot

Growing cautions

  • Spreads by rhizomes. USDA PLANTS lists its growth form as rhizomatous. USDA PLANTS

For planning only; these do not change the score or Fit.

Sources