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Oklahoma State University Stillwater, OK |
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Oklahoma Alfalfa |
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Oklahoma State University Stillwater, OK |
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Oklahoma Alfalfa |
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Buffalobur |
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| COMMON NAME: | Buffalobur |
| SCIENTIFIC NAME: | Solanum rostratum Dun. |
| TYPE: | Annual Warm-season Broadleaf Weed |
| DESCRIPTION | |
| Germination: | April to June. |
| Reproduction: | By seeds July to October. |
| Stems: | Erect, branched in upper portion, 6 to 24 inches tall, hairy, densely covered with long stiff yellow prickles. |
| Leaves: | 2-5 inches long, alternate, petioled, density hairy, cut into deep rounded lobes: veins, midribs, and petioles very prickly. |
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Flowers/ Inflorescence: |
Yellow with 5 lobes, 1 to 1 1/2 inches across. |
| Fruit: | Berry enclosed in a rough-spiny bur. |
FOUND: |
Buffalobur is primarily found in fields, overgrazed pastures, yards, roadsides, and waste areas. Occasionally it is a weed in spring planted alfalfa in an area that had not been cropped for several years. |
CONTROL: |
Some selective control of buffalobur is achieved in seedling alfalfa with BUTYRAC 200, but it is critical to spray while weeds are very small. |
| Jim Stritzke Former Alfalfa Weed Control Specialist Department of Plant and Soil Sciences Oklahoma State University |
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