Lepidium didymum

Classification	Dicots
Family	Brassicaceae
Family (Traditional)	Brassicaceae
Genus	Lepidium
Species:	Lepidium didymum L.
Common Name	Lesser Swinecress; Wart Cress
Growth Habit	forb
Plant Notes	**
Characteristics	Armaments: 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
Status	Not Native
Specimen(s)	View and Download Specimen Details »

** Not applicable or data not available.

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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

Ecoregions

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

Interior River Valleys and Hills
- Shawnee / Caseyville Hills
Mississippi Alluvial Plain
Mississippi Valley Loess Plains
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Synonyms

Synonym	Full 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			TENN Coronopus didymus
TENN-V-0104847	Shelby	Tennessee			TENN Coronopus didymus
TENN-V-0104843	Hamilton	Tennessee			TENN Coronopus didymus
TENN-V-0104844	Knox	Tennessee			TENN Coronopus didymus
TENN-V-0104841	Dickson	Tennessee			TENN Coronopus didymus
TENN-V-0104845	Shelby	Tennessee			TENN Coronopus didymus
TENN-V-0104842	Hamilton	Tennessee			TENN Coronopus didymus
MEM000634	Shelby	Tennessee	22 Apr 1963	George Robertson s.n.	MEM Lepidium didymum
31234100339801	Shelby	Tennessee	05 May 1976	Elizabeth M. Browne 76A4.1	EKY Coronopus didymus

View a List of All Ecological Communities

Lepidium didymum

Related Links

Species Distribution Map

Ecoregions

Synonyms

Specimens and Distribution

Plant Photos