Dioscorea polystachya

Classification	Monocots
Family	Dioscoreaceae
Family (Traditional)	Dioscoreaceae
Genus	Dioscorea
Species:	Dioscorea polystachya Turcz.
Common Name	Cinnamon vine
Growth Habit	vine - forb
Plant Notes	**
Characteristics	Armaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Invasive Rank: TN-IPC Established Threat; Natural Area Presence: DRU; Natural Area Presence: FCFSP; Natural Area Presence: FG; Natural Area Presence: GILES; Natural Area Presence: GRSM; Natural Area Presence: LC; Natural Area Presence: LGS; Natural Area Presence: LRC; Natural Area Presence: LULA; Natural Area Presence: NCCGSNA; Natural Area Presence: NRG; Natural Area Presence: SGSNA; Natural Area Presence: SM; Natural Area Presence: TRG; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: vine - forb; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Moisture Requirements: Mesic-Hydric; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: April; Reproductive Phenology: May; Reproductive Phenology: June; Leaf Arrangement: whorled; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Type: broadleaf; Leaf Venation: palmate; Leaflet Margins: entire; Leaflet Margins: lobed; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: Green; Base Flower Color: White; Fruit Dehiscence: Yes; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Overall Flower Symmetry: Actinomorphic; Petal Number: 6; Pistil Number: 3; Sporangium Arrangement: N/A; Stamen Number: 6
C value	N/A
Status	Not Native; Invasive; TN[SNA] KY[SNA] (State Rank); GNR (Global Rank)
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.

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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 (1)

Synonym	Full Citation
Dioscorea batatas	Dioscorea batatas Decne.

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: Bath (KY), Bell (KY), Calloway (KY), Carter (KY), Clark (KY), Clinton (KY), Cumberland (KY), Fayette (KY), Floyd (KY), Garrard (KY), Harlan (KY), Jackson (KY), Laurel (KY), Lee (KY), McCreary (KY), Madison (KY), Marion (KY), Martin (KY), Menifee (KY), Monroe (KY), Montgomery (KY), Pike (KY), Robertson (KY), Carter (TN), Franklin (TN), Hamilton (TN), Hawkins (TN), Johnson (TN), Marion (TN), Putnam (TN), Shelby (TN), Sullivan (TN), Unicoi (TN), Van Buren (TN)

Herbaria represented by specimen data listed below: MDKY, UOS, EKY, HTTU, MEM, UCHT, BEREA, TENN, ETSU

Range of years during which specimens were collected: 1961 - 2019

Accession No. (click for full details)	County	State	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
31234100092822	Bath	Kentucky	27 Jul 1984	Julian Campbell 667	EKY Dioscorea polystachya
BEREA004503	Bell	Kentucky			BEREA Dioscorea polystachya
BEREA004504	Bell	Kentucky			BEREA Dioscorea polystachya
31234100092830	Calloway	Kentucky	30 Jun 1985	Raymond Athey 5117	EKY Dioscorea polystachya
BEREA004505	Calloway	Kentucky			BEREA Dioscorea polystachya
BEREA004506	Calloway	Kentucky			BEREA Dioscorea polystachya
31234100092848	Carter	Kentucky	01 Jul 1965	Elizabeth M. Browne 10584	EKY Dioscorea polystachya
ETSU033460	Carter	Tennessee	22 May 2012	Frosty Levy	ETSU Dioscorea polystachya
31234100092855	Clark	Kentucky	01 Sep 2000	Timothy J. Weckman 6127	EKY Dioscorea polystachya
31234100092863	Clinton	Kentucky	03 Aug 1999	Mark A. Gorton 99-854	EKY Dioscorea polystachya

Dioscorea polystachya

Related Links

Species Distribution Map

Ecoregions

Synonyms (1)

Specimens and Distribution

Plant Photos