Gymnopogon ambiguus

Classification	Monocots
Family	Poaceae
Family (Traditional)	Poaceae
Genus	Gymnopogon
Species:	Gymnopogon ambiguus (Michx.) Britton, Sterns & Poggenb.
Common Name	Bearded Skeletongrass
Growth Habit	graminoid
Plant Notes	**
Characteristics	Armaments: 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
Status	Native; TN[SNR] KY[S2S3] (State Rank); G4 (Global Rank)
Specimen(s)	View and Download Specimen Details »

** Not applicable or data not available.

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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.

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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

Interior River Valleys and Hills
- Shawnee / Caseyville Hills
Mississippi Alluvial Plain
Mississippi Valley Loess Plains
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Synonyms (6)

Synonym	Full 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.

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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: TENN, MDKY, UOS, APSC, EKY, MEM

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
APSC0064697	Calloway	Kentucky	02 Oct 1972	Raymond Athey	APSC Gymnopogon ambiguus
APSC0043754	Calloway	Kentucky	11 Aug 1979	Edward W. Chester 4186	APSC Gymnopogon ambiguus
APSC0094959	Calloway	Kentucky	07 Sep 1979	Max Medley	APSC Gymnopogon ambiguus
APSC0063871	Calloway	Kentucky	05 Oct 1982	Max Medley	APSC Gymnopogon ambiguus
31234100139417	Calloway	Kentucky		Raymond Athey	EKY Gymnopogon ambiguus
MDKY00004781	Calloway	Kentucky			MDKY Gymnopogon ambiguus
MDKY00004780	Calloway	Kentucky			MDKY Gymnopogon ambiguus
TENN-V-0030615	Calloway	Kentucky			TENN Gymnopogon ambiguus
MEM005956	Calloway	Kentucky		Raymond Athey	MEM Gymnopogon ambiguus
TENN-V-0030562	Cocke	Tennessee			TENN Gymnopogon ambiguus

Gymnopogon ambiguus

Related Links

Species Distribution Map

Ecoregions

Synonyms (6)

Specimens and Distribution

Plant Photos