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Yellow Foxtail (Setaria glauca)

• Family: Grass (Poaceae)
• Flowering: June-October.
• Field Marks: This annual foxtail has stiff, erect spikes subtended by bristles that are usually yellowish.
• Habitat: Along streams, along roads, fields, pastures, and most disturbed areas.
• Habit: Annual herb with fibrous roots.
• Stems: Usually erect, smooth, up to 3 feet tall.
• Leaves: Up to 7 inches long, up to 1/3 inch broad, smooth, with smooth sheaths.
• Flowers: One per spikelet, with many spikelets crowded into a straight, erect spike up to 4 inches long; each spikelet subtended by 4-8 straight, stiff, usually yellow bristles up to 1/2 inch long.
• Stamens: 3.
• Pistils: Ovary superior.
• Grains: Usually enclosed by scales.
• Notes: This plant is commonly called pigeon grass in some areas.