Family:
Poaceae
Scientific Name:
Festuca arundinacea
Toxins:
ergot alkaloids
Flower Color:
Found:
fields, haybales, roadsides, woodlands, pastures

Geographical Distribution

Tall fescue distribution - United States

Tall Fescue

Festuca arundinacea

Kentucky 31, swenkgras
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Tall fescue (Festuca arundinacea) is a widespread pasture forage that is commonly infected with the endophytic fungus, Neotyphodium coenophialum, which produces numerous ergot alkaloids. Ergot alkaloids are toxic birds and known to have an adverse impact on reproduction in birds.


Tall fescue is a deep-rooted, cool-season, bunch-type, perennial grass which grows in low, damp pastures and wet meadowlands throughout Europe, North Africa and North America. Although it grows best in moist environments, tall fescue has good drought tolerance and will survive during dry periods in a dormant state. The plant produces vigorous growth in the spring and fall. The grass flowers in the spring and seed mature in early summer.

There are several different varieties of tall fescue, although the two most common and oldest use varieties are Kentucky-31 and Alta.