Landoltia punctata

Family (Traditional)Araceae
Species:Landoltia punctata (G. Mey.) Les & D. J. Crawford
Common NameDotted Duckmeat
Growth Habitthalloid
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Aquatic; Growth Habit: thalloid; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: Africa; Region of Origin: South America; Leaf Arrangement: floating; Leaf Complexity: compound; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: N/A (leaves absent); Leaf Type: thalloid; Leaf Venation: one-veined; Leaf Venation: palmate; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: Green; Fruit Dehiscence: Yes; Fruit Type: Follicle; Fruit Wet/Dry: Dry; Overall Flower Symmetry: N/A; Placentation Type: Parietal; Sporangium Arrangement: N/A; Stamen Number: 2; Tepal Number: N/A
C value N/A
StatusNot Native; AGCP (OBL), EMP (OBL) (NWPL)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Currently no photos are available for this plant.

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
Landoltia punctata Landoltia punctata (G.Mey.) Les & D.J.Crawford
Spirodela oligorrhiza Spirodela oligorrhiza (Kurz) Hegelm.
Spirodela punctata Spirodela punctata (G.F.W. Mey.) C.H. Thompson

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: Madison (KY), Decatur (TN), Franklin (TN), Marion (TN), Meigs (TN), Shelby (TN)

Herbaria represented by specimen data listed below: BEREA, BOON, EKY, TENN, UOS

Range of years during which specimens were collected: 1970 - 2012

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
TENN-V-0242186 Meigs Tennessee
Landoltia punctata
TENN-V-0242187 Marion Tennessee
Landoltia punctata
UOS06546 Franklin Tennessee 21 Sep 2012 Mary P. Priestley
Landoltia punctata
TENN-V-0242188 Decatur Tennessee
Landoltia punctata
005950 Shelby Tennessee
Spirodela oligorrhiza
31234100104940 Shelby Tennessee 18 Sep 1970 Elizabeth M. Browne
Spirodela oligorrhiza
BEREA003056 Madison Kentucky 09 Jun 1993 Gary W. Libby, Randy L. Mears
Spirodela punctata
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