Lepidium didymum

Family (Traditional)Brassicaceae
Species:Lepidium didymum L.
Common NameLesser Swinecress; Wart Cress
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Annual; Duration: Biennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Xeric; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Region of Origin: South America; Reproductive Phenology: April; Reproductive Phenology: May; Reproductive Phenology: June; Leaf Arrangement: alternate; Leaf Complexity: simple; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Petiole Type: subpetiolate; Leaf Type: broadleaf; Leaflet Margins: dentate; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: White; Carpel Number/Pistil: 2; Fruit Complexity: Simple; Fruit Dehiscence: Yes; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Types: raceme; Ovary Position: Superior; Overall Flower Symmetry: Actinomorphic; Perianth Present: Yes; Petal Fusion: No; Petal Number: 4; Pistil Complexity: Compound; Pistil Number: 1; Placentation Type: Parietal; Sepal Fusion: No; Sepal Number: 4; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 1
C value N/A
StatusNot Native
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

  • State Boundaries
  • Counties
  • Counties - Species Present
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim


SynonymFull Citation
Carara didyma Carara didyma (L.) Britt.
Coronopus didymus Coronopus didymus (L.) Sm.
Senebiera didyma Senebiera didyma

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Dickson (TN), Hamilton (TN), Knox (TN), Shelby (TN)

Herbaria represented by specimen data listed below: EKY, MEM, TENN

Range of years during which specimens were collected: 1963 - 1976

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
TENN-V-0104846 Shelby Tennessee
Coronopus didymus
TENN-V-0104847 Shelby Tennessee
Coronopus didymus
TENN-V-0104843 Hamilton Tennessee
Coronopus didymus
TENN-V-0104844 Knox Tennessee
Coronopus didymus
TENN-V-0104841 Dickson Tennessee
Coronopus didymus
TENN-V-0104845 Shelby Tennessee
Coronopus didymus
TENN-V-0104842 Hamilton Tennessee
Coronopus didymus
MEM000634 Shelby Tennessee 22 Apr 1963 George Robertson
Lepidium didymum
31234100339801 Shelby Tennessee 05 May 1976 Elizabeth M. Browne
Coronopus didymus
First Page Previous Page Next Page Last Page
Records per Page:

Plant Photos

Lepidium didymum - Shawn Krosnick
Lepidium didymum - Shawn Krosnick
Lepidium didymum - Shawn Krosnick
Lepidium didymum - Shawn Krosnick
Lepidium didymum - Shawn Krosnick
Lepidium didymum - Shawn Krosnick
Lepidium didymum - Shawn Krosnick
Lepidium didymum - Shawn Krosnick