Gymnopogon ambiguus

ClassificationMonocots
FamilyPoaceae
Family (Traditional)Poaceae
GenusGymnopogon
Species:Gymnopogon ambiguus (Michx.) Britton, Sterns & Poggenb.
Common NameBearded Skeletongrass
Growth Habitgraminoid
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: graminoid; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Region of Origin: North America; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Reproductive Phenology: November; Leaf Arrangement: alternate; Leaf Arrangement: basal; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Type: grass-like; Leaf Venation: parallel; Leaflet Margins: entire; Leaflet Number: 0; Base Flower Color: Brown (incl. Maroon); Base Flower Color: Green; Fruit Dehiscence: No; Fruit Type: Caryopsis; Fruit Type: Grain; Fruit Wet/Dry: Dry; Hypanthium Present: No; Ovary Position: Superior; Overall Flower Symmetry: N/A; Perianth Present: No; Placentation Type: Parietal; Placentation Type: Basal; Sporangium Arrangement: N/A
C value 9
StatusNative; TN[SNR] KY[S2S3] (State Rank); G4 (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

SynonymFull Citation
Agrostis boeckeleri Agrostis boeckeleri Seub. ex Steud.
Anthopogon lepturoides Anthopogon lepturoides Nutt.
Gymnopogon distichophyllus Gymnopogon distichophyllus Steud.
Gymnopogon racemosus Gymnopogon racemosus P. Beauv.
Gymnopogon scoparius Gymnopogon scoparius Trin.
Stipa expansa Stipa expansa Willd. ex Steud.

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), Crittenden (KY), Hardin (KY), McCreary (KY), Marshall (KY), Pulaski (KY), Trigg (KY), Cocke (TN), Coffee (TN), Cumberland (TN), Dickson (TN), Franklin (TN), Hardin (TN), Knox (TN), McNairy (TN), Meigs (TN), Montgomery (TN), Roane (TN), Rutherford (TN), Stewart (TN), Van Buren (TN)

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

Range of years during which specimens were collected: 1972 - 2015

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100139458 Marshall Kentucky Raymond Athey
EKY
Gymnopogon ambiguus
31234100139508 Roane Tennessee 21 Aug 1977 Henry R. DeSelm
530
EKY
Gymnopogon ambiguus
31234100139441 Marshall Kentucky Raymond Athey
EKY
Gymnopogon ambiguus
31234100139417 Calloway Kentucky Raymond Athey
EKY
Gymnopogon ambiguus
31234100139425 Crittenden Kentucky Raymond Athey
EKY
Gymnopogon ambiguus
31234100139433 Hardin Kentucky Ray Cranfill
EKY
Gymnopogon ambiguus
31234100139490 Coffee Tennessee 25 Aug 1992 Henry R. DeSelm
EKY
Gymnopogon ambiguus
31234100139466 Pulaski Kentucky Max E. Medley
EKY
Gymnopogon ambiguus
MDKY00004781 Calloway Kentucky
MDKY
Gymnopogon ambiguus
MDKY00004780 Calloway Kentucky
MDKY
Gymnopogon ambiguus
TENN-V-0030576 McNairy Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030615 Calloway Kentucky
TENN
Gymnopogon ambiguus
TENN-V-0030581 Van Buren Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030577 McNairy Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030566 Cumberland Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030562 Cocke Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030571 Hardin Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030616 Crittenden Kentucky
TENN
Gymnopogon ambiguus
TENN-V-0030617 Marshall Kentucky
TENN
Gymnopogon ambiguus
TENN-V-0030600 McCreary Kentucky
TENN
Gymnopogon ambiguus
TENN-V-0030573 Knox Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030572 Hardin Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030582 Van Buren Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030580 Rutherford Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030568 Franklin Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030561 Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030564 Coffee Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030570 Franklin Tennessee
TENN
Gymnopogon ambiguus
APSC0051835 Rutherford Tennessee 09 Oct 2015 Mason Brock
APSC
Gymnopogon ambiguus
MEM014997 Crittenden Kentucky Raymond Athey
MEM
Gymnopogon ambiguus
APSC0071787 Hardin Kentucky
APSC
Gymnopogon ambiguus
APSC0043759 Rutherford Tennessee 06 Sep 2006 Dwayne Estes with John Beck
09497
APSC
Gymnopogon ambiguus
APSC0043756 Montgomery Tennessee 18 Sep 1993 Edward W. Chester with Jerry Baskin, Carol Baskin
13016
APSC
Gymnopogon ambiguus
APSC0076704 Pulaski Kentucky 13 Oct 1987 Max Medley
APSC
Gymnopogon ambiguus
APSC0043755 Stewart Tennessee 24 Aug 1990 Edward W. Chester with James Joyner
90-386
APSC
Gymnopogon ambiguus
APSC0064697 Calloway Kentucky 02 Oct 1972 Raymond Athey
APSC
Gymnopogon ambiguus
APSC0076703 Pulaski Kentucky 13 Oct 1987 Max Medley
APSC
Gymnopogon ambiguus
APSC0043769 Trigg Kentucky 18 Sep 1987 Edward W. Chester with Bill Martin and Chegxia You
87-782
APSC
Gymnopogon ambiguus
UOS07970 Coffee Tennessee 06 Oct 1996 Landon E. McKinney
UOS
Gymnopogon ambiguus
MEM005956 Calloway Kentucky Raymond Athey
MEM
Gymnopogon ambiguus
MEM011617 Marshall Kentucky Raymond Athey
MEM
Gymnopogon ambiguus
TENN-V-0030579 Roane Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030563 Coffee Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030578 Meigs Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030565 Cumberland Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030567 Dickson Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030575 McNairy Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030569 Franklin Tennessee
TENN
Gymnopogon ambiguus
TENN-V-0030574 McNairy Tennessee
TENN
Gymnopogon ambiguus
APSC0094959 Calloway Kentucky 07 Sep 1979 Max Medley
APSC
Gymnopogon ambiguus
APSC0043768 Trigg Kentucky 14 Sep 1987 Chengxia You
APSC
Gymnopogon ambiguus
APSC0043754 Calloway Kentucky 11 Aug 1979 Edward W. Chester
4186
APSC
Gymnopogon ambiguus
APSC0063871 Calloway Kentucky 05 Oct 1982 Max Medley
APSC
Gymnopogon ambiguus
APSC0043767 Trigg Kentucky 13 Sep 1987 Chengxia You
APSC
Gymnopogon ambiguus
APSC0043757 Montgomery Tennessee 31 Aug 1996 Edward W. Chester
13179
APSC
Gymnopogon ambiguus
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Plant Photos

Gymnopogon ambiguus - Dwayne Estes
Gymnopogon ambiguus - Dwayne Estes
Gymnopogon ambiguus - Milo Pyne
Gymnopogon ambiguus - Milo Pyne
Gymnopogon ambiguus - Tara Littlefield
Gymnopogon ambiguus - Tara Littlefield
Gymnopogon ambiguus - Theo Witsell
Gymnopogon ambiguus - Theo Witsell
Gymnopogon ambiguus - Theo Witsell
Gymnopogon ambiguus - Theo Witsell