SANDBUR
File Size: 148 KB
 
Cenchrus longispinus   (Hack. ) Fernald
Russell County, Kansas
Annual
Height: 8-32 inches
Family: Poaceae - Grass Family
Flowering Period:   July, August, September
Also Called: Long-spine sandbur.
Culms: Erect or decumbent, tufted, flattened, often bent near bases.
Blades: Flat, 2 to 10 inches long, less than 1/4 inch wide, rough; tips tapering to points.
Sheaths: Glabrous, usually loose, flattened; margins sometimes hairy.
Ligules: Short membranes, fringed with hairs.
Inflorescences: Spikes, 1 to 3 inches long, terminal, sometimes partly enclosed by upper leaf, often purplish when mature; burs 6-20, hard, hairy, armed with 30-65 stout spines, enclosing 1-3 spikelets.
Spikelets: 2-flowered, upper floret perfect, lower floret sterile; glumes unequal; tips pointed; lemmas narrow, glabrous; tips pointed.
Habitat: Waste areas, cultivated fields, roadsides, and lawns, on sandy or gravelly sites.
Distribution: Throughout Kansas.
Forage Value: It provides good forage when immature but has no forage value after it forms burs.
Comments: Tufted. Sandbur is a common weed that sometimes forms large mats. The burs cling to clothing and fur and can injure the eyes, noses, and mouths of livestock.

Sandbur
191 KB
Russell County, Kansas
Mature burs of sandbur
95 KB
Russell County, Kansas
Sandbur
186 KB
Russell County, Kansas