Cosmos bipinnatus

Family (Traditional)Asteraceae
Species:Cosmos bipinnatus Cav.
Common NameGarden Cosmos
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: LGS; Duration: Annual; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Dry-mesic; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Leaf Arrangement: opposite; Leaf Complexity: compound; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Dissection: 1; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Petiole Type: sessile; Leaf Type: broadleaf; Leaf Venation: pinnate; Leaflet Margins: entire; Leaflet Margins: lobed; Leaflet Number: 20+; Anther Type: Basifixed; Base Flower Color: Pink; Base Flower Color: Purple; Base Flower Color: White; Base Flower Color: Yellow; Carpel Number/Pistil: 1; Fruit Complexity: Simple; Fruit Dehiscence: No; Fruit Type: Cypsela; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Inflorescence Types: corymb/cyme/umbel; Inflorescence Types: head; Inflorescence Types: solitary; Ovary Position: Inferior; Overall Flower Symmetry: Actinomorphic; Overall Flower Symmetry: Zygomorphic; Ovules per Carpel: 1; Perianth Present: Yes; Petal Fusion: Yes; Petal Number: 5; Pistil Complexity: Simple; Pistil Number: 1; Placentation Type: Basal; Sepal Fusion: N/A; Sepal Number: N/A; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 5; Tepal Number: N/A
C value N/A
StatusNot Native; AGCP (FAC), EMP (FACU) (NWPL); TN[SNA] 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
Bidens formosa Bidens formosa
Cosmos diversifolius var. pumilus Cosmos diversifolius var. pumilus

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: Calloway (KY), Madison (KY), Blount (TN), Carter (TN), Hamilton (TN), Knox (TN), Montgomery (TN), Sevier (TN), Shelby (TN), Stewart (TN)

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

Range of years during which specimens were collected: 1974 - 2016

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
BEREA025763 Madison Kentucky
Cosmos bipinnatus
TENN-V-0233379 Sevier Tennessee
Cosmos bipinnatus
TENN-V-0233376 Shelby Tennessee
Cosmos bipinnatus
TENN-V-0233378 Blount Tennessee
Cosmos bipinnatus
BEREA025764 Madison Kentucky
Cosmos bipinnatus
N/A Carter Tennessee 21 Aug 2016 Frosty Levy
Cosmos bipinnatus
TENN-V-0233374 Knox Tennessee
Cosmos bipinnatus
BEREA007093 Calloway Kentucky
Cosmos bipinnatus
APSC0026774 Montgomery Tennessee 07 Aug 1983 Edward Chester
Cosmos bipinnatus
UCHT029409 Hamilton Tennessee
Cosmos bipinnatus
31234100233954 Madison Kentucky 14 Sep 1974 Patricia A. Smith
Cosmos bipinnatus
BEREA007092 Calloway Kentucky
Cosmos bipinnatus
TENN-V-0233375 Shelby Tennessee
Cosmos bipinnatus
APSC0026773 Stewart Tennessee
Cosmos bipinnatus
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