Agrostis capillaris

Family (Traditional)Poaceae
Species:Agrostis capillaris L.
Common NameColonial Bentgrass; Rhode Island Bentgrass
Growth Habitgraminoid
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: graminoid; Region of Origin: Europe; 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; Sexuality: monoclinous; Sporangium Arrangement: N/A
C value N/A
StatusNot Native; AGCP (FAC), EMP (FAC) (NWPL); TN[SNA] KY[SNA] (State Rank); GNR (Global Rank)
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
  • 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


SynonymFull Citation
Agrestis polymorpha Agrestis polymorpha (Huds.) Bubani
Agrostis alba subsp. vulgaris Agrostis alba subsp. vulgaris (With.) Douin
Agrostis alba var. aristata Agrostis alba var. aristata A. Gray
Agrostis alba var. minor Agrostis alba var. minor Vasey
Agrostis alba var. silvatica Agrostis alba var. silvatica (Huds.) K. Richt.
Agrostis alba var. stricta Agrostis alba var. stricta Alph. Wood
Agrostis alba var. tenuis Agrostis alba var. tenuis (Sibth.) Fiori
Agrostis capillaris var. aristata Agrostis capillaris var. aristata (Parnell) Druce
Agrostis capillaris var. aristulata Agrostis capillaris var. aristulata Hitchc.
Agrostis capillaris var. pumila Agrostis capillaris var. pumila (L.) Druce
Agrostis hispida Agrostis hispida Willd.
Agrostis lithuanica Agrostis lithuanica Besser ex Roem. & Schult.
Agrostis palustris var. stricta Agrostis palustris var. stricta (Willd.) House
Agrostis polymorpha Agrostis polymorpha Huds.
Agrostis polymorpha var. capillaris Agrostis polymorpha var. capillaris (L.) Huds.
Agrostis polymorpha var. pumila Agrostis polymorpha var. pumila (L.) Huds.
Agrostis pumila Agrostis pumila L.
Agrostis rubra var. pumila Agrostis rubra var. pumila (L.) Wimm. & Grab.
Agrostis rubra var. tenella Agrostis rubra var. tenella (Hoffm.) Wimm. & Grab.
Agrostis stolonifera var. hispida Agrostis stolonifera var. hispida (Willd.) Farw.
Agrostis stolonifera var. minor Agrostis stolonifera var. minor (Vasey) Farw.
Agrostis stolonifera var. tenella Agrostis stolonifera var. tenella (Hoffm.) Wimm. & Grab.
Agrostis sylvatica Agrostis sylvatica Huds.
Agrostis tenuis Agrostis tenuis Bast. ex Roem. & Schult.
Agrostis tenuis f. aristata Agrostis tenuis f. aristata (Parnell) Wiegand
Agrostis tenuis var. aristata Agrostis tenuis var. aristata
Agrostis tenuis var. hispida Agrostis tenuis var. hispida
Agrostis tenuis var. pumila Agrostis tenuis var. pumila
Agrostis tenuis var. tenuis Agrostis tenuis var. tenuis Sibth.
Agrostis vulgaris Agrostis vulgaris With.
Agrostis vulgaris var. aristata Agrostis vulgaris var. aristata A. Gray
Agrostis vulgaris var. hispida Agrostis vulgaris var. hispida (Willd.) G. Mey.
Agrostis vulgaris var. pumila Agrostis vulgaris var. pumila (L.) Klett & Richter ex Peterm.
Agrostis vulgaris var. tenella Agrostis vulgaris var. tenella (Hoffm.) Gaudin
Trichodium capillaris Trichodium capillaris (L.) Roth
Trichodium strictum Trichodium strictum Roem. & Schult.
Vilfa divaricata var. pumila Vilfa divaricata var. pumila (L.) Gray
Vilfa vulgaris Vilfa vulgaris (With.) Gray

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), Carter (KY), McCreary (KY), Blount (TN), Carter (TN), Knox (TN), Marion (TN), Sevier (TN), Shelby (TN), Tipton (TN), Unicoi (TN), Washington (TN)

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

Range of years during which specimens were collected: 1968 - 2013

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
TENN-V-0028326 Knox Tennessee
Agrostis tenuis
SWMT05063 Shelby Tennessee 21 Apr 2013 A. DeGenova
Agrostis capillaris
MEM011015 Tipton Tennessee 05 Jun 1968 Sarah J. Warrington
Agrostis capillaris
ETSU006657 Unicoi Tennessee 23 Jun 2009 Frosty Levy
Agrostis capillaris
UOS07557 Marion Tennessee 07 Oct 1999 Al Good
Agrostis capillaris
31234100115524 Bell Kentucky 08 Jun 2005 Amy V. Mcintosh
Agrostis capillaris
TENN-V-0028325 Shelby Tennessee
Agrostis capillaris
TENN-V-0028323 Blount Tennessee
Agrostis capillaris
ETSU002752 Washington Tennessee
Agrostis capillaris
MDKY00003993 McCreary Kentucky
Agrostis tenuis
APSC0035033 Sevier Tennessee
Agrostis capillaris
TENN-V-0028327 Shelby Tennessee
Agrostis tenuis
MDKY00003994 Carter Kentucky
Agrostis capillaris
TENN-V-0028324 Blount Tennessee
Agrostis capillaris
N/A Carter Tennessee 12 Jul 2013 Frosty Levy
Agrostis capillaris
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