Polygonum tenue

Classification	Dicots
Family	Polygonaceae
Family (Traditional)	Polygonaceae
Genus	Polygonum
Species:	Polygonum tenue Michx.
Common Name	Pleatleaf Knotweed
Growth Habit	forb
Plant Notes	**
Characteristics	Armaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: Yes; Woody Herbaceous: Herbaceous; Natural Area Presence: LRC; Natural Area Presence: WOLF; Duration: Annual; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Xeric; Moisture Requirements: Sub-xeric; Region of Origin: North America; Reproductive Phenology: June; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Leaf Arrangement: alternate; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaflet Margins: entire; Leaflet Number: 0; Base Flower Color: Green; Base Flower Color: Pink; Base Flower Color: White; Fruit Dehiscence: No; Fruit Type: Achene; Fruit Wet/Dry: Dry; Hypanthium Present: No; Ovary Position: Superior; Overall Flower Symmetry: Actinomorphic; Perianth Present: Yes; Pistil Number: 1; Placentation Type: Basal; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 8
C value	7
Status	Native; TN[SNR] KY[S4?] (State Rank); G5 (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.

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

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: Caldwell (KY), Crittenden (KY), Livingston (KY), Marshall (KY), Powell (KY), Cumberland (TN), Fayette (TN), Fentress (TN), Franklin (TN), Grainger (TN), Marion (TN), Rhea (TN), Roane (TN), Sequatchie (TN), Sumner (TN), White (TN)

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

Range of years during which specimens were collected: 1963 - 1992

Accession No. (click for full details)	County	State	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
31234100580933	Caldwell	Kentucky	09 Sep 1992	Landon E. McKinney 5207	EKY Polygonum tenue
TENN-V-0088252	Cumberland	Tennessee			TENN Polygonum tenue
TENN-V-0088255	Cumberland	Tennessee			TENN Polygonum tenue
TENN-V-0088253	Cumberland	Tennessee			TENN Polygonum tenue
TENN-V-0088262	Sumner	Tennessee			TENN Polygonum tenue
TENN-V-0088261	Sequatchie	Tennessee			TENN Polygonum tenue
TENN-V-0088257	Franklin	Tennessee			TENN Polygonum tenue
TENN-V-0088260	Marion	Tennessee			TENN Polygonum tenue
TENN-V-0088266	White	Tennessee			TENN Polygonum tenue
TENN-V-0088259	Grainger	Tennessee			TENN Polygonum tenue
TENN-V-0088264	Roane	Tennessee			TENN Polygonum tenue
TENN-V-0089229	Livingston	Kentucky			TENN Polygonum tenue
TENN-V-0088263	Rhea	Tennessee			TENN Polygonum tenue
TENN-V-0089230	Livingston	Kentucky			TENN Polygonum tenue
TENN-V-0242159	Marion	Tennessee			TENN Polygonum tenue
TENN-V-0088265	White	Tennessee			TENN Polygonum tenue
TENN-V-0088258	Franklin	Tennessee			TENN Polygonum tenue
TENN-V-0088256	Fentress	Tennessee			TENN Polygonum tenue
TENN-V-0088254	Cumberland	Tennessee			TENN Polygonum tenue
UCHT010958	Grainger	Tennessee			UCHT Polygonum tenue
APSC0118519	Marshall	Kentucky			APSC Polygonum tenue
APSC0107986	Powell	Kentucky	25 Oct 1978	Richard Hannan	APSC Polygonum tenue
APSC0054051	Marion	Tennessee			APSC Polygonum tenue
APSC0075491	Powell	Kentucky	25 Oct 1978	Max Medley	APSC Polygonum tenue
APSC0086578	Crittenden	Kentucky	06 Oct 1986	Max Medley	APSC Polygonum tenue
APSC0086521	Livingston	Kentucky	06 Oct 1986	Max Medley	APSC Polygonum tenue
MEM000557	Fayette	Tennessee	02 Nov 1963	T.L. Jackson 88	MEM Polygonum tenue
31234100580941	Livingston	Kentucky	30 Sep 1968	Raymond Athey 506	EKY Polygonum tenue

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Polygonum tenue

Related Links

Species Distribution Map

Ecoregions

Synonyms

Specimens and Distribution

Plant Photos