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goatgrass
Scientific Name: Aegilops
Family: Poaceae
Category: Monocot
Growth:
Duration:
Other Names:
Goatgrass (Aegilops spp.)
Goatgrasses belong to the genus Aegilops, encompassing various species within the grass family, Poaceae. These plants are native to Eurasia and North America. Several species are considered troublesome weeds, particularly in agricultural settings.
Considerations for Pets
- Some species, like Aegilops triuncialis, possess sharp-pointed seeds that can cause injury if ingested by livestock.
Scientific Name and Common Names
- Scientific Name: Aegilops spp.
- Common Names: Goatgrass, Barb Goatgrass (Aegilops triuncialis), Jointed Goatgrass (Aegilops cylindrica)
Taxonomy and Nomenclature
- Family: Poaceae (Grass family)
- Tribe: Triticeae (for Aegilops cylindrica, shared with wheat and other cereals)
- Synonyms: Aegilops cylindrica (Aka Jointgrass)
Distribution and Habitat
- Native to Eurasia (including Eastern and Mediterranean Europe) and North America.
- Jointed Goatgrass (Aegilops cylindrica) is found in all western states of the US and major US winter wheat production regions, from Texas to South Dakota and eastern Montana.
- Barb Goatgrass (Aegilops triuncialis) grows in rangelands, grasslands, and oak woodlands.
- Often found in cultivated fields.
Ecological Role
- Many species, like Jointed Goatgrass, are considered invasive plants.
- Jointed Goatgrass (Aegilops cylindrica) is a noxious weed in many wheat-growing regions, competing with crops for water and nutrients, thus reducing crop yields.
- It is estimated that jointed goatgrass is spreading at a rate of 50,000 acres per year.
- Barb Goatgrass (Aegilops triuncialis) is becoming a dominant species in some rangelands, grasslands, and oak woodlands.
Morphological Characteristics
- Jointed Goatgrass (Aegilops cylindrica) is an annual grass, typically 15-30 inches tall.
- Can reach 4 ft. (1.2 m) in height.
- Leaves are alternate, up to 0.5 in. (1.2 cm) wide.
- Vegetatively similar to wheat in the seed stage.
- The leaves are alternately arranged with auricles at their base.
- A short-lived, erect grass with one to many erect stems or tillers.
Genetic Information
- Jointed Goatgrass (Aegilops cylindrica) and wheat (Triticum aestivum) are polyploid, with one genome (D) in common.
Interactions with Other Organisms
- Jointed Goatgrass can hybridize with winter wheat.
- Introgression of leaf rust and stripe rust resistance from Sharon goatgrass (Aegilops sharonensis) into bread wheat (Triticum aestivum L.) is being studied.
Quirky Facts
- In Tibia Wiki, Goat Grass weighs 0.80 oz.
Further Information
- USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org
- Integrated Management of Jointed Goatgrass in the Pacific Northwest. EB2042
- Field Guide for Managing Jointed Goatgrass in the Southwest. Forest Service. September 2014. Southwestern Region. TP-R3-16-29. United States
- EB1932. Jointed Goatgrass. Ecology.
- Colorado Natural Areas Program