Foxtail - Setaria magna
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Giant foxtail is a coarse annual, 2 to 4 m tall. The stem is as much
as 2 cm across basally and often has conspicuous prop roots from the lower
nodes. The leaf blades are up to 5 dm long, 3 to 5 cm wide, and rough
on both surfaces and the edges. Ligules are membranous and hairy, about
3 mm long. Leaf sheaths are glabrous. The inflorescence is a dense cylindrical
panicle, 2 to 3 dm long and 3 to 4 cm broad, often nodding. The bristle
below each spikelet is longer than the spikelet.
This species grows in shallow water of both fresh and brackish marshes,
bayous, ditches, shores and moist fallow fields. The plants reproduce
from seeds and can form large colonies.
Large populations exclude native vegetation.
Links to more information
Website, video, and graphics by Rob Nelson
For more information on this plant or management please contact US Army Corp of Engineers