Lathyrus sylvestris

Family (Traditional)Fabaceae
Species:Lathyrus sylvestris L.
Common NameFlat Pea; Flat Peavine; Narrow Leaved Everlasting Pea
Growth Habitvine - forb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: Yes; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: vine - forb; Region of Origin: Europe; Reproductive Phenology: June; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Leaf Arrangement: alternate; Leaf Complexity: compound; Leaf Dissection: 1; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Type: broadleaf; Leaf Venation: pinnate; Leaf Venation: ternate; Leaflet Margins: entire; Leaflet Number: 2; Base Flower Color: Pink; Carpel Number/Pistil: 1; Fruit Complexity: Simple; Fruit Dehiscence: Yes; Fruit Type: Legume; Fruit Wet/Dry: Dry; Hypanthium Present: Yes; Ovary Position: Superior; Overall Flower Symmetry: Zygomorphic; Ovules per Carpel: 2; Ovules per Carpel: 3; Ovules per Carpel: 4; Ovules per Carpel: 5; Ovules per Carpel: 6; Ovules per Carpel: 7; Ovules per Carpel: 8; Ovules per Carpel: 9; Ovules per Carpel: 10; Ovules per Carpel: 11; Ovules per Carpel: 12; Ovules per Carpel: 13+; Perianth Present: Yes; Petal Number: 5; Pistil Complexity: Simple; Pistil Number: 1; Placentation Type: Parietal; Sepal Number: 5; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 10
C value N/A
StatusNot Native; KY[SNA] (State Rank); GNR (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


SynonymFull Citation
Lathyrus silvestris Lathyrus silvestris L.

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: Barren (KY), Campbell (KY), Clinton (KY), Jackson (KY), Laurel (KY), Madison (KY), Polk (TN), Unicoi (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, EKY, ETSU, KNK

Range of years during which specimens were collected: 1981 - 1999

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100428711 Clinton Kentucky 04 Aug 1999 Mark A. Gorton
Lathyrus sylvestris
31973000012971 Campbell Kentucky
Lathyrus sylvestris
31234100428729 Laurel Kentucky 12 Jun 1981 Ralph L. Thompson
Lathyrus sylvestris
31234100718525 Laurel Kentucky 23 Jun 1989 Ralph L. Thompson
Lathyrus sylvestris
31973000012972 Campbell Kentucky
Lathyrus sylvestris
31234100428745 Laurel Kentucky 16 May 1987 Ralph L. Thompson
Lathyrus sylvestris
ETSU016925 Unicoi Tennessee
Lathyrus sylvestris
31234100428703 Barren Kentucky 30 May 1993 Charles J. Lapham
Lathyrus sylvestris
APSC0099117 Jackson Kentucky
Lathyrus sylvestris
APSC0017689 Polk Tennessee
Lathyrus sylvestris
31234100428737 Laurel Kentucky 25 May 1985 Ralph L. Thompson
Lathyrus sylvestris
APSC0017695 Polk Tennessee
Lathyrus sylvestris
BEREA013654 Madison Kentucky
Lathyrus sylvestris
31973000012973 Campbell Kentucky
Lathyrus sylvestris
31973000012974 Campbell Kentucky
Lathyrus sylvestris
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