Arrhenatherum elatius var. bulbosum

Family (Traditional)Poaceae
Species: Arrhenatherum elatius
Infraspecies:Arrhenatherum elatius (Willd.) Spenner var. bulbosum
Common NameTuber Oatgrass; Tall Oatgrass
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: May; Reproductive Phenology: June; 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 N/A
StatusNot Native; TN[SNA] KY[SNA] (State Rank); GNRTNR (Global Rank)

** 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
Arrhenatherum avenaceum var. bulbosum Arrhenatherum avenaceum var. bulbosum (Willd.) Hartm.
Arrhenatherum avenaceum var. nodosum Arrhenatherum avenaceum var. nodosum Rchb.
Arrhenatherum bulbosum var. variegatum Arrhenatherum bulbosum var. variegatum Hitchc.
Arrhenatherum elatius f. bulbosum Arrhenatherum elatius f. bulbosum (Willd.) T. Koyama
Arrhenatherum elatius var. nodosum Arrhenatherum elatius var. nodosum (Rchb.) F.T. Hubb.
Arrhenatherum elatus var. tuberosum Arrhenatherum elatus var. tuberosum (F.W. Schultz) Thielens
Avena elatior var. bulbosa Avena elatior var. bulbosa (Willd.) St.-Amans
Avena elatior var. tuberosa Avena elatior var. tuberosa (F.W. Schultz) Asch.
Holcus avenaceus var. bulbosus Holcus avenaceus var. bulbosus (Willd.) Gaudin

Specimens and Distribution

No specimens exist for this species.

Plant Photos