Danthonia compressa

Classification	Monocots
Family	Poaceae
Family (Traditional)	Poaceae
Genus	Danthonia
Species:	Danthonia compressa Austin
Common Name	Flattened Oatgrass
Growth Habit	graminoid
Plant Notes	**
Characteristics	Armaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: BE; Natural Area Presence: BFM; Natural Area Presence: FCFSP; Natural Area Presence: FG; Natural Area Presence: GM; Natural Area Presence: GRSM; Natural Area Presence: LULA; Natural Area Presence: NCCGSNA; Natural Area Presence: ObedWSR; Natural Area Presence: SGSNA; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: graminoid; 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 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	5
Status	Native; AGCP (FACU), EMP (FACU) (NWPL); TN[SNR] KY[S3S4] (State Rank); G5 (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.

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

Synonym	Full Citation
Danthonia alleni	Danthonia alleni
Danthonia faxonii	Danthonia faxonii
Danthonia spicata var. compressa	Danthonia spicata var. compressa (Austin) Alph. Wood
Pentameris compressa	Pentameris compressa (Austin) A. Nelson & J.F. Macbr.

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: Bell (KY), Harlan (KY), Laurel (KY), Letcher (KY), McCreary (KY), Powell (KY), Bledsoe (TN), Campbell (TN), Carter (TN), Cocke (TN), Cumberland (TN), Fentress (TN), Greene (TN), Grundy (TN), Hamilton (TN), Johnson (TN), Marion (TN), Monroe (TN), Morgan (TN), Polk (TN), Sevier (TN), Sullivan (TN), Unicoi (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, EKY, ETSU, KNK, MDKY, MEM, TENN, UCHT, UOS

Range of years during which specimens were collected: 1975 - 2017

Accession No. (click for full details)	County	State	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
N/A	Harlan	Kentucky	26 Jun 1993	Bryce D. Fields 506	EKY Danthonia compressa
N/A	Carter	Tennessee	14 Jul 2012	Frosty Levy	ETSU Danthonia compressa
ETSU006714	Greene	Tennessee	28 Sep 2009	Frosty Levy	ETSU Danthonia compressa
N/A	Carter	Tennessee	27 Jul 2012	Frosty Levy	ETSU Danthonia compressa
31973000021415	McCreary	Kentucky	16 May 1994	Thieret, John 57416	KNK Danthonia compressa
TENN-V-0029934	Polk	Tennessee			TENN Danthonia compressa
TENN-V-0029927	Johnson	Tennessee			TENN Danthonia compressa
TENN-V-0029935	Sullivan	Tennessee			TENN Danthonia compressa
TENN-V-0029928	Marion	Tennessee			TENN Danthonia compressa
UCHT002654	Marion	Tennessee			UCHT Danthonia compressa
MEM011992	Bell	Kentucky	04 Jun 1975	Raymond Athey 3053	MEM Danthonia compressa
N/A	Harlan	Kentucky	26 Jun 2005	Amy V. McIntosh 1062	EKY Danthonia compressa
N/A	Sevier	Tennessee	26 Jun 1981	Henry R. DeSelm 373	EKY Danthonia compressa
N/A	Harlan	Kentucky	26 Jun 1993	Bryce D. Fields 518	EKY Danthonia compressa
ETSU003056	Unicoi	Tennessee	18 Jul 2010	Frosty Levy	ETSU Danthonia compressa
N/A	Unicoi	Tennessee	27 Jul 2010	Frosty Levy	ETSU Danthonia compressa
ETSU003046	Unicoi	Tennessee	19 Jun 2010	Frosty Levy	ETSU Danthonia compressa
N/A	Johnson	Tennessee	03 Jun 2013	Frosty Levy	ETSU Danthonia compressa
TENN-V-0029937	Unicoi	Tennessee			TENN Danthonia compressa
TENN-V-0029938	Unicoi	Tennessee			TENN Danthonia compressa
APSC0091499	Harlan	Kentucky	09 Jun 1979	Max Medley	APSC Danthonia compressa
APSC0064400	Harlan	Kentucky			APSC Danthonia compressa
ETSU033687	Carter	Tennessee			ETSU Danthonia compressa
ETSU006712	Johnson	Tennessee	25 Aug 2013	Frosty Levy	ETSU Danthonia compressa
TENN-V-0029920	Cocke	Tennessee			TENN Danthonia compressa
TENN-V-0029926	Grundy	Tennessee			TENN Danthonia compressa
UCHT002651	Fentress	Tennessee	16 Jun 2014	Joey Shaw	UCHT Danthonia compressa
N/A	Bell	Kentucky	11 Jun 1988	Barbara L. Rafaill 902	EKY Danthonia compressa
BEREA005718	Laurel	Kentucky			BEREA Danthonia compressa
BEREA005717	Bell	Kentucky			BEREA Danthonia compressa
TENN-V-0029922	Cumberland	Tennessee			TENN Danthonia compressa
TENN-V-0029921	Cocke	Tennessee			TENN Danthonia compressa
TENN-V-0029918	Cocke	Tennessee			TENN Danthonia compressa
TENN-V-0029919	Cocke	Tennessee			TENN Danthonia compressa
APSC0069965	Harlan	Kentucky			APSC Danthonia compressa
APSC0096651	Letcher	Kentucky	15 Aug 1982	Max Medley	APSC Danthonia compressa
ETSU006713	Johnson	Tennessee	13 Jul 2013	Frosty Levy	ETSU Danthonia compressa
N/A	Johnson	Tennessee	13 Jul 2013	Frosty Levy	ETSU Danthonia compressa
ETSU003047	Carter	Tennessee			ETSU Danthonia compressa
MDKY00004262	Harlan	Kentucky			MDKY Danthonia compressa
TENN-V-0030080	Harlan	Kentucky			TENN Danthonia compressa
TENN-V-0029917	Carter	Tennessee			TENN Danthonia compressa
TENN-V-0029924	Grundy	Tennessee			TENN Danthonia compressa
UCHT002653	Hamilton	Tennessee	20 Jun 2007	S. Huskins 963	UCHT Danthonia compressa
APSC0064399	Letcher	Kentucky	12 Jun 1980	Max Medley	APSC Danthonia compressa
APSC0052726	Grundy	Tennessee			APSC Danthonia compressa
ETSU033686	Carter	Tennessee			ETSU Danthonia compressa
N/A	Harlan	Kentucky	12 Jun 1993	Bryce D. Fields 470	EKY Danthonia compressa
BEREA005716	Bell	Kentucky			BEREA Danthonia compressa
ETSU003048	Unicoi	Tennessee			ETSU Danthonia compressa
MDKY00004264	Monroe	Tennessee			MDKY Danthonia compressa
TENN-V-0029914	Bledsoe	Tennessee			TENN Danthonia compressa
TENN-V-0029925	Grundy	Tennessee			TENN Danthonia compressa
TENN-V-0029923	Greene	Tennessee			TENN Danthonia compressa
TENN-V-0029932	Morgan	Tennessee			TENN Danthonia compressa
APSC0091498	Letcher	Kentucky	12 Jun 1986	Max Medley	APSC Danthonia compressa
APSC0096652	Harlan	Kentucky	09 Jun 1979	Max Medley	APSC Danthonia compressa
UCHT038284	Campbell	Tennessee			UCHT Danthonia compressa
UOS07745	Grundy	Tennessee	12 Jun 1999	Al Good	UOS Danthonia compressa
ETSU033692	Carter	Tennessee			ETSU Danthonia compressa
N/A	Laurel	Kentucky	23 Jun 1989	Ralph L. Thompson 89-1137	EKY Danthonia compressa
N/A	Bell	Kentucky	14 Jun 1979	Richard H. Hannan 2312	EKY Danthonia compressa
31234100779477	Powell	Kentucky	12 Jun 2017	Thomas McFadden 534	EKY Danthonia compressa
N/A	Bell	Kentucky	20 Jul 1989	Ralph L. Thompson 89-1640	EKY Danthonia compressa
MDKY00004263	McCreary	Kentucky			MDKY Danthonia compressa
TENN-V-0029916	Campbell	Tennessee			TENN Danthonia compressa
TENN-V-0029915	Campbell	Tennessee			TENN Danthonia compressa
TENN-V-0029936	Sullivan	Tennessee			TENN Danthonia compressa
TENN-V-0029929	Monroe	Tennessee			TENN Danthonia compressa
UCHT002652	Marion	Tennessee			UCHT Danthonia compressa
APSC0096653	Harlan	Kentucky			APSC Danthonia compressa
APSC0063476	Bell	Kentucky			APSC Danthonia compressa
BEREA005719	Laurel	Kentucky			BEREA Danthonia compressa
BEREA005715	Bell	Kentucky			BEREA Danthonia compressa
ETSU003050	Unicoi	Tennessee			ETSU Danthonia compressa
N/A	Carter	Tennessee	14 Jun 2012	Frosty Levy	ETSU Danthonia compressa
N/A	Carter	Tennessee	14 Jun 2012	Frosty Levy	ETSU Danthonia compressa
ETSU003049	Unicoi	Tennessee			ETSU Danthonia compressa
TENN-V-0029930	Monroe	Tennessee			TENN Danthonia compressa
TENN-V-0029931	Monroe	Tennessee			TENN Danthonia compressa
TENN-V-0029933	Morgan	Tennessee			TENN Danthonia compressa
APSC0086574	Harlan	Kentucky			APSC Danthonia compressa
APSC0096654	Letcher	Kentucky	26 Jul 1979	Max Medley	APSC Danthonia compressa
APSC0069698	Bell	Kentucky	27 May 1985	Max Medley	APSC Danthonia compressa

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Danthonia compressa

Related Links

Species Distribution Map

Ecoregions

Synonyms

Specimens and Distribution

Plant Photos