WITCHGRASS
File Size: 162 KB
 
Panicum capillare  L.
Tallgrass Prairie National Preserve, Chase County, Kansas
Annual
Height: 8-28 inches
Family: Poaceae - Grass Family
Flowering Period:   July, August, September
Also Called: Ticklegrass.
Culms: Erect or spreading from decumbent bases, simple or sparingly branched, hollow, pubescent near nodes.
Blades: Blades flat or folded, 2 to 10 inches long, 1/4 to 1/2 inch wide, surfaces and lower margins with long, soft hairs, midrib prominent.
Sheaths: Usually longer than internodes, densely long-hairy.
Ligules: Short fringes of hairs.
Inflorescences: Panicles, open, spreading, 4 to 12 inches long, nearly as broad, frequently 1/2 length of entire plant, often partially enclosed in uppermost sheaths, usually purplish at maturity; branches numerous, slender, bearing spikelets near ends.
Spikelets: Long-stalked, 2-flowered, elliptic, about 1/10 inch long; tips sharp-pointed; glumes unequal; lemmas 1 fertile, 1 sterile; awns absent.
Habitat: Waste ground, disturbed areas, cultivated fields, and roadsides, in dry or sandy soils.
Distribution: Throughout Kansas.
Forage Value: It provides little forage value and rarely is grazed. However, the fruits are an important food source for quail.
Comments: Witchgrass is a weedy species that invades areas where there is little competition. After maturity, the panicles break off and roll like tumbleweeds.

Witchgrass inflorescence
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Tallgrass Prairie National Preserve, Chase County, Kansas
Witchgrass sheath and blade hairs
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Konza Prairie, Riley County, Kansas
Witchgrass
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Konza Prairie, Riley County, Kansas
Witchgrass
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Tallgrass Prairie National Preserve, Chase County, Kansas