Rudbeckia tenax

ClassificationDicots
FamilyAsteraceae
Family (Traditional)Asteraceae
GenusRudbeckia
Species:Rudbeckia tenax C. L. Boynton & Beadle
Common NameSweet coneflower
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Leaf Arrangement: alternate; Leaf Arrangement: basal; Leaf Complexity: simple; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Petiole Type: sessile; Leaf Type: broadleaf; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: Brown (incl. Maroon); Base Flower Color: Purple; 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
StatusNative
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
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

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: Breckinridge (KY), Bullitt (KY), Carter (KY), Christian (KY), Crittenden (KY), Edmonson (KY), Hardin (KY), Hart (KY), Lincoln (KY), Livingston (KY), Logan (KY), McCreary (KY), Nelson (KY), Rowan (KY), Todd (KY), Woodford (KY), Decatur (TN), Franklin (TN), Hamilton (TN), Hawkins (TN), Lewis (TN), Meigs (TN), Montgomery (TN), Polk (TN), Rutherford (TN), Stewart (TN), Sullivan (TN), Unicoi (TN), Wilson (TN)

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

Range of years during which specimens were collected: 1942 - 2019

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
APSC0090899 Rowan Kentucky
APSC
Rudbeckia tenax
APSC0092523 Wilson Tennessee
APSC
Rudbeckia tenax
APSC0027654 Bullitt Kentucky
APSC
Rudbeckia tenax
APSC0074555 Bullitt Kentucky
APSC
Rudbeckia tenax
APSC0057252 McCreary Kentucky
APSC
Rudbeckia tenax
APSC0092526 Rutherford Tennessee
APSC
Rudbeckia tenax
APSC0047010 Meigs Tennessee 10 Oct 1980 Jerry and Carol Baskin
APSC
Rudbeckia tenax
APSC0056652 Breckinridge Kentucky 21 Jul 1982 Max Medley
APSC
Rudbeckia tenax
APSC0023858 Hamilton Tennessee 26 Aug 2012 Mason Brock
APSC
Rudbeckia tenax
APSC0027657 Bullitt Kentucky
APSC
Rudbeckia tenax
HTTU031553 Franklin Tennessee
HTTU
Rudbeckia tenax
UCHT040024 Polk Tennessee
UCHT
Rudbeckia tenax
N/A Hawkins Tennessee 07 Sep 2019 Frosty Levy, Elaine Walker
ETSU
Rudbeckia tenax
ETSU012931 Hawkins Tennessee
ETSU
Rudbeckia tenax
31234100286911 Christian Kentucky 21 Jul 1984 Raymond Athey
4959
EKY
Rudbeckia tenax
APSC0076066 Edmonson Kentucky
APSC
Rudbeckia tenax
APSC0056638 Franklin Tennessee
APSC
Rudbeckia tenax
APSC0058664 Todd Kentucky 05 Aug 1976 Raymond Athey
APSC
Rudbeckia tenax
APSC0023857 Hamilton Tennessee 26 Aug 2012 Mason Brock
APSC
Rudbeckia tenax
APSC0074556 Lincoln Kentucky
APSC
Rudbeckia tenax
APSC0023921 Stewart Tennessee 04 Aug 1965 William H. Ellis
APSC
Rudbeckia tenax
APSC0023926 Lewis Tennessee 14 Aug 2004 Dwayne Estes
APSC
Rudbeckia tenax
APSC0092525 Wilson Tennessee
APSC
Rudbeckia tenax
ETSU009494 Sullivan Tennessee 27 Aug 2017 Frosty Levy
ETSU
Rudbeckia tenax
APSC0023929 Rutherford Tennessee
APSC
Rudbeckia tenax
APSC0056645 Hardin Kentucky 17 Sep 1978 Max Medley
APSC
Rudbeckia tenax
APSC0027655 Hart Kentucky
APSC
Rudbeckia tenax
APSC0092161 Franklin Tennessee
APSC
Rudbeckia tenax
APSC0047009 Meigs Tennessee 10 Oct 1980 Jerry and Carol Baskin
APSC
Rudbeckia tenax
ETSU026733 Hawkins Tennessee 07 Sep 2019 Frosty Levy, Elaine Walker
19889
ETSU
Rudbeckia tenax
31234100286853 Woodford Kentucky 29 Jul 1954 Mary E. Wharton
8562
EKY
Rudbeckia tenax
ETSU005969 Unicoi Tennessee 01 Oct 2015 Frosty Levy
ETSU
Rudbeckia tenax
APSC0056637 Hardin Kentucky 30 Aug 1980 Max Medley
APSC
Rudbeckia tenax
APSC0060098 Todd Kentucky 05 Aug 1976 Raymond Athey
APSC
Rudbeckia tenax
31234100286895 Livingston Kentucky 06 Sep 1982 Raymond Athey
4681
EKY
Rudbeckia tenax
APSC0092159 Franklin Tennessee
APSC
Rudbeckia tenax
APSC0023922 Nelson Kentucky
APSC
Rudbeckia tenax
APSC0057259 Hardin Kentucky 01 Aug 1982 Max Medley
APSC
Rudbeckia tenax
APSC0057261 Hardin Kentucky 01 Aug 1982 Max Medley
APSC
Rudbeckia tenax
APSC0057258 Hardin Kentucky 01 Aug 1982 Max Medley
APSC
Rudbeckia tenax
APSC0023927 Decatur Tennessee
APSC
Rudbeckia tenax
APSC0057251 Edmonson Kentucky 28 Aug 1982 Max Medley
APSC
Rudbeckia tenax
UCHT040023 Polk Tennessee
UCHT
Rudbeckia tenax
N/A Hawkins Tennessee 22 Sep 2019 Frosty Levy, Elaine Walker
ETSU
Rudbeckia tenax
ETSU026486 Hawkins Tennessee 20 Jul 2019 Frosty Levy, Elaine Walker
19651
ETSU
Rudbeckia tenax
ETSU026836 Hawkins Tennessee 22 Sep 2019 Frosty Levy, Elaine Walker
19992
ETSU
Rudbeckia tenax
APSC0023930 Stewart Tennessee 20 Sep 1942 R.E. Shanks
APSC
Rudbeckia tenax
APSC0023925 Meigs Tennessee 26 Aug 2012 Mason Brock
APSC
Rudbeckia tenax
APSC0092524 Wilson Tennessee
APSC
Rudbeckia tenax
APSC0057253 Crittenden Kentucky 21 Jul 1979 Max Medley
APSC
Rudbeckia tenax
HTTU003774 Logan Kentucky
HTTU
Rudbeckia tenax
APSC0023928 Rutherford Tennessee
APSC
Rudbeckia tenax
APSC0090898 Hardin Kentucky 20 Jul 1979 Max Medley
APSC
Rudbeckia tenax
APSC0057255 Breckinridge Kentucky 31 Jul 1982 Max Medley
APSC
Rudbeckia tenax
APSC0027656 Bullitt Kentucky
APSC
Rudbeckia tenax
APSC0056644 Carter Kentucky
APSC
Rudbeckia tenax
APSC0107682 Hardin Kentucky 20 Jul 1979 Max Medley
APSC
Rudbeckia tenax
APSC0092527 Rutherford Tennessee
APSC
Rudbeckia tenax
APSC0079801 Bullitt Kentucky
APSC
Rudbeckia tenax
APSC0057257 McCreary Kentucky
APSC
Rudbeckia tenax
APSC0023924 Montgomery Tennessee 19 Aug 1982 Edward Chester
APSC
Rudbeckia tenax
APSC0057256 Hardin Kentucky 01 Aug 1982 Max Medley
APSC
Rudbeckia tenax
APSC0092528 Rutherford Tennessee
APSC
Rudbeckia tenax
APSC0092160 Franklin Tennessee
APSC
Rudbeckia tenax
APSC0027653 Bullitt Kentucky
APSC
Rudbeckia tenax
APSC0045905 Franklin Tennessee
APSC
Rudbeckia tenax
APSC0057260 Hardin Kentucky 01 Aug 1982 Max Medley
APSC
Rudbeckia tenax
APSC0056654 Breckinridge Kentucky 21 Jul 1982 Max Medley
APSC
Rudbeckia tenax
HTTU031550 Franklin Tennessee
HTTU
Rudbeckia tenax
N/A Hawkins Tennessee 20 Jul 2019 Frosty Levy, Elaine Walker
ETSU
Rudbeckia tenax
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