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Pumpelly's brome

Scientific Name: Bromus inermis ssp. pumpellianus var. pumpellianus

Family: Poaceae

Category: Monocot

Growth: Graminoid

Duration: Perennial

Other Names:

       

Smooth Brome and Pumpelly's Brome (Bromus spp.)

This page provides information on two related species of grasses: Smooth Brome (Bromus inermis) and Pumpelly's Brome (Bromus pumpellianus, often considered a subspecies of Bromus inermis). Smooth Brome is also referred to as Awnless Brome, Austrian Bromegrass, Hungarian Brome, Hungarian Bromegrass, and Russian Bromegrass.

Taxonomy and Nomenclature

  • Scientific Name: Bromus inermis (Smooth Brome), Bromus pumpellianus (Pumpelly's Brome)
  • Common Names: Smooth Brome, Pumpelly's Brome, Awnless Brome, Austrian Bromegrass, Hungarian Brome, Hungarian Bromegrass, Russian Bromegrass, Arctic Brome, Rocky Mountain Brome, Northern Awnless Brome
  • Family: Poaceae (Grass Family)
  • Synonyms: Bromus inermis syn Zerna inermis, Bromopsis pumpelliana
  • Subspecies/Varieties:
    • Bromus inermis subsp. inermis
    • Bromus inermis subsp. pumpellianus
    • Bromus inermis subsp. pumpellianus var. pumpellianus
    • Bromus inermis subsp. pumpellianus var. coloradensis
    • Bromus inermis var. purpurascens
    • Bromus inermis Leyss. var. pumpellianus (Scribn.) C.L. Hitchc.

Distribution and Habitat

  • Smooth Brome has been introduced to North America.
  • Pumpelly's Brome is native to North America.
  • Pumpelly's Brome has been observed near Grande Cache, Alberta, in Arctic Alaska, and is found in the Rocky Mountains.

Morphological Characteristics and Growth Habits

  • Bromus inermis is a perennial grass, growing up to 1.2 meters (4 feet) tall.
  • It flowers in May, and the seeds ripen from August to September.
  • It is hardy to zone (UK) 3.

Ecological Role

  • Smooth Brome is an important agricultural plant.

Interactions with Other Organisms

  • FEIS species review synthesizes information on the relationship of Bromus pumpellianus (Pumpelly brome) to fire--how fire...

Resources and Further Information

  • Michigan Natural Features Inventory: P.O. Box 30444 - Lansing, MI 48909-7944, Phone: 517-373-1552
  • Dryades Project, Dipartimento di Scienze della Vita, Universit di Trieste
  • Toolik-Arctic Geobotanical Atlas