jointed goatgrass

Aegilops cylindrica Host

Description from Invasive.org

Appearance
Aegilops cylindrica is a winter annual that can reach 4 ft. (1.2 m) in height.
Foliage
The leaves are alternate, up to 0.5 in. (1.2 cm) wide with thin hairs along the margins, sheath openings and auricles. The ligule is short and membranous.
Flowers
Flowering occurs in May to June, when the plants produce red (when mature) or straw-colored spikes. Spikes are cylindrical and contain 2-12 spikelets per spike.
Fruit
The spikelets are awned with the longest awns at the top of the spike. At maturity the seed heads break into individual segments.
Ecological Threat
Aegilops cylindrica is native to southern Europe and western Asia. This species is known to hybridize with wheat.

Resources

Selected Images from Invasive.org

View All Images at Invasive.org


Plant(s)
USDA APHIS PPQ - Oxford, North Carolina , USDA APHIS PPQ, Bugwood.org
Additional Resolutions & Image Usage
Feature(s) compared to wheat
USDA APHIS PPQ - Oxford, North Carolina , USDA APHIS PPQ, Bugwood.org
Additional Resolutions & Image Usage
Feature(s) auricles
Steve Dewey, Utah State University, Bugwood.org
Additional Resolutions & Image Usage
Foliage
Steve Dewey, Utah State University, Bugwood.org
Additional Resolutions & Image Usage
Stem(s) collar and sheath.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage
Stem(s) embedded spikelets.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Distribution