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Yellow foxtail

Also known as: yellow bristlegrass

Setaria pumila (Poir.) Roem.

[=Setaria glauca (L.) Beauv. ]

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Yellow foxtail
Yellow foxtail
Yellow foxtail ligule
Yellow foxtail inflorescence
Yellow foxtail

Morphology

Culm
Erect to ascending, 12 to 40 inches tall, branching at base, flattened, glabrous, often geniculate, sometimes purplish.
Blades
Flat to folded, 4 to 12 inches long and .2 to .5 inch wide, occasionally twisted in loose spiral, glabrous except for scattered long hairs on upper surface close to base.
Sheath
Prominently flattened, keeled, glabrous, often purplish at base; margins not ciliate.
Ligule
Ciliate membrane.
Inflorescence
Panicle, dense, stiffly erect, cylindric, 2 to 4 inches long; yellowish at maturity.
Spikelets
Broadly ovate, but flat on one side; floret 1, perfect; lemma 1, sterile; 4-12 yellowish-brown to golden-brown bristles at base of each spikelet.

Ecology

Habitat
Waste areas, disturbed sites, cultivated ground, roadsides, and lawns.
Distribution
Throughout Kansas.

Practical Information

Forage Value
Yellow foxtail has fair forage value when immature.
Uses
Birds will consume the seeds.

Additional Notes

Comments

A common weed that is one of the first plants to appear in disturbed areas. The bristles have been known to cause mouth injuries in livestock.

Special Notes: Compare with green foxtail

Synonyms

Alternative scientific names that have been used for this plant.

Scientific Name: Setaria glauca

Full Citation: Setaria glauca Beauv.

Quick Facts
Plant Type
Grass
Family
Poaceae - Grass Family
Life Span
Annual
Height
12-40 inches
Last Updated
2007-09-18
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: June, July, August, September