Cuscuta polygonorum

Family (Traditional)Convolvulaceae
Species:Cuscuta polygonorum Engelm.
Common NameSmartweed Dodder
Growth Habitvine - forb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: vine - forb; Moisture Requirements: Mesic-Hydric; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Leaf Arrangement: alternate; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Type: scale-like; Leaflet Number: 0; Base Flower Color: White; Base Flower Color: Yellow; Fruit Dehiscence: Yes; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Overall Flower Symmetry: Actinomorphic; Pistil Number: 1; Placentation Type: Axillary; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 4; Stamen Number: 5
C value 8
StatusNative; TN[SNR] KY[SNR] (State Rank); G5 (Global Rank)
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


No synonyms exist for this species.

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: Fayette (KY), Hart (KY), Jessamine (KY), Livingston (KY), Muhlenberg (KY), Wayne (KY), Giles (TN)

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

Range of years during which specimens were collected: 1955 - 1989

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100390515 Jessamine Kentucky 28 Jul 1982 Ronald L. Jones
Cuscuta polygonorum
APSC0087765 Muhlenberg Kentucky
Cuscuta polygonorum
APSC0101243 Hart Kentucky
Cuscuta polygonorum
31234100390523 Fayette Kentucky 14 Jul 1955 Mary E. Wharton
Cuscuta polygonorum
APSC0087767 Hart Kentucky
Cuscuta polygonorum
APSC0087766 Hart Kentucky
Cuscuta polygonorum
APSC0087769 Hart Kentucky
Cuscuta polygonorum
APSC0051120 Giles Tennessee
Cuscuta polygonorum
APSC0087768 Hart Kentucky
Cuscuta polygonorum
APSC0072007 Wayne Kentucky 02 Oct 1989 Max Medley
Cuscuta polygonorum
MEM006849 Livingston Kentucky 25 Sep 1973 Raymond Athey
Cuscuta polygonorum
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