Silphium pinnatifidum

ClassificationDicots
FamilyAsteraceae
Family (Traditional)Asteraceae
GenusSilphium
Species:Silphium pinnatifidum Elliot
Common NameTansy Rosinweed
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: BE; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Xeric; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Moisture Requirements: Mesic-Hydric; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: June; Reproductive Phenology: July; Reproductive Phenology: August; 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: dentate; Leaflet Margins: entire; Leaflet Margins: lobed; Leaflet Number: 0; Anther Type: Basifixed; 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: head; 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 8
StatusNative; TN[S2] KY[S3] (State Rank); G3Q (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

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: Christian (KY), Garrard (KY), Grayson (KY), Hart (KY), Logan (KY), Lyon (KY), Todd (KY), Trigg (KY), Warren (KY), Bradley (TN), Coffee (TN), Davidson (TN), Franklin (TN), Hamilton (TN), Maury (TN), Montgomery (TN), Rutherford (TN), Stewart (TN), Wilson (TN)

Herbaria represented by specimen data listed below: APSC, EKY, MTSU, TENN, UCHT, UOS, VDB

Range of years during which specimens were collected: 1965 - 2018

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
TENN-V-0226970 Coffee Tennessee
TENN
Silphium pinnatifidum
TENN-V-0226980 Montgomery Tennessee
TENN
Silphium pinnatifidum
TENN-V-0226968 Bradley Tennessee
TENN
Silphium pinnatifidum
TENN-V-0227170 Todd Kentucky
TENN
Silphium pinnatifidum
TENN-V-0226976 Franklin Tennessee
TENN
Silphium pinnatifidum
TENN-V-0226973 Coffee Tennessee
TENN
Silphium pinnatifidum
TENN-V-0226983 Rutherford Tennessee
TENN
Silphium pinnatifidum
TENN-V-0227169 Lyon Kentucky
TENN
Silphium pinnatifidum
TENN-V-0226969 Bradley Tennessee
TENN
Silphium pinnatifidum
TENN-V-0226975 Coffee Tennessee
TENN
Silphium pinnatifidum
TENN-V-0226971 Coffee Tennessee
TENN
Silphium pinnatifidum
TENN-V-0226977 Hamilton Tennessee
TENN
Silphium pinnatifidum
TENN-V-0226974 Coffee Tennessee
TENN
Silphium pinnatifidum
APSC0023562 Christian Kentucky 14 Aug 1996 Edward W. Chester
13174
APSC
Silphium pinnatifidum
APSC0023609 Logan Kentucky 10 Aug 2004 Edward W. Chester
14674
APSC
Silphium pinnatifidum
31234100289170 Logan Kentucky E.W. Chester
EKY
Silphium pinnatifidum
31234100289188 Trigg Kentucky Edward W. Chester
EKY
Silphium pinnatifidum
TENN-V-0226978 Maury Tennessee
TENN
Silphium pinnatifidum
TENN-V-0226982 Rutherford Tennessee
TENN
Silphium pinnatifidum
APSC0062590 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0023618 Trigg Kentucky 05 Aug 1965 William H. Ellis
00729
APSC
Silphium pinnatifidum
APSC0062592 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0058502 Todd Kentucky 05 Aug 1976 Raymond Athey
APSC
Silphium pinnatifidum
APSC0023624 Lyon Kentucky 10 Aug 1987 Edward W. Chester
87-669
APSC
Silphium pinnatifidum
APSC0023620 Lyon Kentucky 2005-October Dwayne Estes, J. Beck, et al
08658
APSC
Silphium pinnatifidum
APSC0023612 Montgomery Tennessee 24 Aug 1981 Edward W. Chester
81-730
APSC
Silphium pinnatifidum
APSC0023599 Wilson Tennessee
APSC
Silphium pinnatifidum
APSC0023613 Hamilton Tennessee 2010-October Dwayne Estes
11773
APSC
Silphium pinnatifidum
APSC0079006 Hart Kentucky
APSC
Silphium pinnatifidum
31234100725702 Garrard Kentucky W. W. Overbeck
EKY
Silphium pinnatifidum
31234100289162 Logan Kentucky Edward W. Chester
EKY
Silphium pinnatifidum
TENN-V-0226979 Montgomery Tennessee
TENN
Silphium pinnatifidum
APSC0062636 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0066439 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0023586 Franklin Tennessee
APSC
Silphium pinnatifidum
APSC0023603 Coffee Tennessee
APSC
Silphium pinnatifidum
APSC0066438 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0023581 Hamilton Tennessee 26 Aug 2012 Mason Brock
APSC
Silphium pinnatifidum
APSC0113697 Stewart Tennessee
APSC
Silphium pinnatifidum
APSC0023621 Lyon Kentucky 22 Aug 1985 Edward W. Chester
85-646
APSC
Silphium pinnatifidum
APSC0113694 Stewart Tennessee
APSC
Silphium pinnatifidum
APSC0113696 Stewart Tennessee
APSC
Silphium pinnatifidum
APSC0066442 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0023626 Trigg Kentucky
APSC
Silphium pinnatifidum
APSC0025326 Grayson Kentucky
APSC
Silphium pinnatifidum
APSC0066443 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0062627 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0040686 Christian Kentucky 21 Apr 2015 Mason Brock
APSC
Silphium pinnatifidum
APSC0023565 Christian Kentucky 14 Aug 1996 Edward Chester
APSC
Silphium pinnatifidum
APSC0067544 Hart Kentucky
APSC
Silphium pinnatifidum
APSC0023611 Montgomery Tennessee
APSC
Silphium pinnatifidum
APSC0023564 Christian Kentucky 14 Aug 1996 Edward Chester
APSC
Silphium pinnatifidum
APSC0121019 Hart Kentucky
APSC
Silphium pinnatifidum
APSC0023585 Franklin Tennessee
APSC
Silphium pinnatifidum
APSC0076885 Franklin Tennessee
APSC
Silphium pinnatifidum
APSC0023592 Rutherford Tennessee
APSC
Silphium pinnatifidum
APSC0023614 Trigg Kentucky 23 Aug 1980 Edward W. Chester
4431
APSC
Silphium pinnatifidum
APSC0079007 Hart Kentucky
APSC
Silphium pinnatifidum
APSC0023622 Stewart Tennessee 03 Aug 1985 Edward W. Chester
85-561
APSC
Silphium pinnatifidum
APSC0062628 Hart Kentucky
APSC
Silphium pinnatifidum
APSC0023604 Coffee Tennessee
APSC
Silphium pinnatifidum
APSC0056398 Coffee Tennessee
APSC
Silphium pinnatifidum
APSC0023597 Wilson Tennessee
APSC
Silphium pinnatifidum
APSC0023605 Coffee Tennessee
APSC
Silphium pinnatifidum
APSC0023607 Christian Kentucky 24 Aug 1981 Edward Chester
APSC
Silphium pinnatifidum
APSC0023616 Trigg Kentucky
APSC
Silphium pinnatifidum
APSC0023589 Franklin Tennessee 19 Oct 2010 Dwayne Estes
11828
APSC
Silphium pinnatifidum
APSC0023582 Hamilton Tennessee 26 Aug 2012 Mason Brock
APSC
Silphium pinnatifidum
APSC0062635 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0023615 Trigg Kentucky
APSC
Silphium pinnatifidum
APSC0023587 Franklin Tennessee
APSC
Silphium pinnatifidum
APSC0062634 Warren Kentucky
APSC
Silphium pinnatifidum
BRIT100247 Rutherford Tennessee
VDB
Silphium pinnatifidum
BRIT100154 Tennessee
VDB
Silphium pinnatifidum
TENN-V-0226981 Rutherford Tennessee
TENN
Silphium pinnatifidum
APSC0049247 Grayson Kentucky
APSC
Silphium pinnatifidum
APSC0049248 Grayson Kentucky
APSC
Silphium pinnatifidum
APSC0121018 Hart Kentucky
APSC
Silphium pinnatifidum
APSC0023561 Montgomery Tennessee
APSC
Silphium pinnatifidum
APSC0023608 Trigg Kentucky 07 Sep 1981 Edward W. Chester
81-790
APSC
Silphium pinnatifidum
APSC0101678 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0023595 Montgomery Tennessee
APSC
Silphium pinnatifidum
APSC0062591 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0062593 Hart Kentucky 27 Sep 1984 Max Medley
APSC
Silphium pinnatifidum
APSC0067545 Hart Kentucky
APSC
Silphium pinnatifidum
APSC0023584 Franklin Tennessee
APSC
Silphium pinnatifidum
UOS01294 Franklin Tennessee H.C. Yeatman
UOS
Silphium pinnatifidum
BRIT100159 Rutherford Tennessee
VDB
Silphium pinnatifidum
APSC0076886 Franklin Tennessee
APSC
Silphium pinnatifidum
APSC0023623 Stewart Tennessee 03 Aug 1985 Edward Chester
APSC
Silphium pinnatifidum
APSC0066441 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0062626 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0062632 Coffee Tennessee
APSC
Silphium pinnatifidum
APSC0023560 Montgomery Tennessee 24 Aug 1998 Edward W. Chester
13538
APSC
Silphium pinnatifidum
APSC0068906 Coffee Tennessee
APSC
Silphium pinnatifidum
APSC0023580 Hamilton Tennessee 26 Aug 2012 Mason Brock
APSC
Silphium pinnatifidum
APSC0023619 Trigg Kentucky
APSC
Silphium pinnatifidum
N/A Rutherford Tennessee H. Eggert
UCHT
Silphium pinnatifidum
N/A Rutherford Tennessee H. Eggert
UCHT
Silphium pinnatifidum
UOS01296 Franklin Tennessee H.C. Yeatman
UOS
Silphium pinnatifidum
BRIT100158 Tennessee
VDB
Silphium pinnatifidum
BRIT100255 Rutherford Tennessee
VDB
Silphium pinnatifidum
APSC0025325 Wilson Tennessee 06 Aug 1971 Jerry and Carol Baskin
APSC
Silphium pinnatifidum
APSC0101671 Warren Kentucky
APSC
Silphium pinnatifidum
MTSU022271 Rutherford Tennessee 1994 Terri Hogan
MTSU
Silphium pinnatifidum
UOS01293 Franklin Tennessee H.C. Yeatman
UOS
Silphium pinnatifidum
BRIT100252 Rutherford Tennessee
VDB
Silphium pinnatifidum
BRIT100249 Rutherford Tennessee
VDB
Silphium pinnatifidum
BRIT100253 Rutherford Tennessee
VDB
Silphium pinnatifidum
BRIT100151 Tennessee
VDB
Silphium pinnatifidum
APSC0062629 Hart Kentucky
APSC
Silphium pinnatifidum
APSC0023591 Rutherford Tennessee 21 Aug 1994 Milo Pyne
94-262
APSC
Silphium pinnatifidum
APSC0023596 Wilson Tennessee 25 Aug 2012 Mason Brock
15
APSC
Silphium pinnatifidum
APSC0023593 Montgomery Tennessee 11 Jul 1994 Edward W. Chester
13049
APSC
Silphium pinnatifidum
APSC0023610 Logan Kentucky 10 Aug 2004 Edward Chester
APSC
Silphium pinnatifidum
APSC0023602 Coffee Tennessee
APSC
Silphium pinnatifidum
APSC0023606 Christian Kentucky 24 Aug 1981 Edward W. Chester, Jim Price, K. Kio
81-731
APSC
Silphium pinnatifidum
APSC0023566 Christian Kentucky 14 Aug 1996 Edward Chester
APSC
Silphium pinnatifidum
UOS01292 Franklin Tennessee Mary P. Priestley
UOS
Silphium pinnatifidum
BRIT100148 Tennessee
VDB
Silphium pinnatifidum
BRIT100157 Tennessee
VDB
Silphium pinnatifidum
BRIT100156 Tennessee
VDB
Silphium pinnatifidum
N/A Rutherford Tennessee H. Eggert
UCHT
Silphium pinnatifidum
N/A Rutherford Tennessee H. Eggert
UCHT
Silphium pinnatifidum
APSC0023594 Montgomery Tennessee
APSC
Silphium pinnatifidum
APSC0062630 Hart Kentucky
APSC
Silphium pinnatifidum
APSC0023583 Franklin Tennessee 25 Aug 2012 Mason Brock
18
APSC
Silphium pinnatifidum
APSC0023590 Franklin Tennessee
APSC
Silphium pinnatifidum
APSC0062631 Coffee Tennessee
APSC
Silphium pinnatifidum
APSC0032888 Hart Kentucky 15 Aug 2014 Mason Brock
APSC
Silphium pinnatifidum
APSC0062595 Hart Kentucky 27 Sep 1984 Max Medley
APSC
Silphium pinnatifidum
UOS01295 Franklin Tennessee H.C. Yeatman
UOS
Silphium pinnatifidum
BRIT100251 Rutherford Tennessee
VDB
Silphium pinnatifidum
BRIT100150 Tennessee
VDB
Silphium pinnatifidum
BRIT100246 Rutherford Tennessee
VDB
Silphium pinnatifidum
TENN-V-0226972 Coffee Tennessee
TENN
Silphium pinnatifidum
APSC0062633 Coffee Tennessee
APSC
Silphium pinnatifidum
APSC0023600 Wilson Tennessee 25 Aug 2012 Mason Brock
16
APSC
Silphium pinnatifidum
APSC0048702 Grayson Kentucky
APSC
Silphium pinnatifidum
APSC0023617 Trigg Kentucky
APSC
Silphium pinnatifidum
APSC0062625 Warren Kentucky
APSC
Silphium pinnatifidum
APSC0067543 Hart Kentucky
APSC
Silphium pinnatifidum
APSC0104889 Christian Kentucky 28 Jul 2018 Mason Brock
APSC
Silphium pinnatifidum
APSC0113695 Stewart Tennessee
APSC
Silphium pinnatifidum
APSC0066440 Warren Kentucky
APSC
Silphium pinnatifidum
BRIT100155 Tennessee
VDB
Silphium pinnatifidum
BRIT100152 Tennessee
VDB
Silphium pinnatifidum
BRIT100248 Rutherford Tennessee
VDB
Silphium pinnatifidum
BRIT100153 Tennessee
VDB
Silphium pinnatifidum
APSC0023601 Coffee Tennessee 25 Aug 2012 Mason Brock
17
APSC
Silphium pinnatifidum
APSC0023625 Trigg Kentucky 03 Sep 1985 Edward W. Chester
85-778
APSC
Silphium pinnatifidum
APSC0023598 Wilson Tennessee
APSC
Silphium pinnatifidum
APSC0023588 Franklin Tennessee
APSC
Silphium pinnatifidum
APSC0119762 Todd Kentucky 05 Aug 1976 Raymond Athey
APSC
Silphium pinnatifidum
APSC0023579 Hamilton Tennessee 26 Aug 2012 Mason Brock
28
APSC
Silphium pinnatifidum
APSC0023563 Christian Kentucky 14 Aug 1996 Edward Chester
APSC
Silphium pinnatifidum
APSC0062594 Hart Kentucky 27 Sep 1984 Max Medley
APSC
Silphium pinnatifidum
BRIT100250 Rutherford Tennessee
VDB
Silphium pinnatifidum
BRIT100149 Tennessee
VDB
Silphium pinnatifidum
BRIT100254 Rutherford Tennessee
VDB
Silphium pinnatifidum
BRIT100160 Rutherford Tennessee
VDB
Silphium pinnatifidum
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Plant Photos

Silphium pinnatifidum - Ashley B. Morris
Silphium pinnatifidum - Ashley B. Morris
Silphium pinnatifidum - Ashley B. Morris
Silphium pinnatifidum - Ashley B. Morris
Silphium pinnatifidum - Ashley B. Morris
Silphium pinnatifidum - Ashley B. Morris
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Dwayne Estes
Silphium pinnatifidum - Joey Shaw
Silphium pinnatifidum - Joey Shaw
Silphium pinnatifidum - Milo Pyne
Silphium pinnatifidum - Milo Pyne
Silphium pinnatifidum - Milo Pyne
Silphium pinnatifidum - Milo Pyne
Silphium pinnatifidum - Milo Pyne
Silphium pinnatifidum - Milo Pyne
Silphium pinnatifidum - Sunny Fleming
Silphium pinnatifidum - Sunny Fleming
Silphium pinnatifidum - Sunny Fleming
Silphium pinnatifidum - Sunny Fleming
Silphium pinnatifidum - Sunny Fleming
Silphium pinnatifidum - Sunny Fleming
Silphium pinnatifidum - Tara Littlefield
Silphium pinnatifidum - Tara Littlefield
Silphium pinnatifidum - Tara Littlefield
Silphium pinnatifidum - Tara Littlefield
Silphium pinnatifidum - Tara Littlefield
Silphium pinnatifidum - Tara Littlefield
Silphium pinnatifidum - Tara Littlefield
Silphium pinnatifidum - Tara Littlefield
Silphium pinnatifidum - Theo Witsell
Silphium pinnatifidum - Theo Witsell
Silphium pinnatifidum - Theo Witsell
Silphium pinnatifidum - Theo Witsell