Oklahoma State University Stillwater, OK | |
Oklahoma Alfalfa |
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Flixweed |
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COMMON NAME: | Flixweed |
SCIENTIFIC NAME: | Sescurainia sophia (L.) Webb. ex Prantl |
TYPE: | Annual Cool-season Broadleaf |
DESCRIPTION | |
Germination: | September through November. |
Reproduction: | By seed, May through June. |
Stems: | Erect, branched above, green with grayish short hairs. |
Leaves: | Alternate, stalked, 2 to 3 times divided, fern-like. |
Flowers/ Inflorescence: |
Dense raceme, 4 yellow petals, 4 longer sepals. |
Fruit: | Long silique, at right angle to stem, 20-40 seeds/2-part fruit. |
FOUND: |
Throughout the state, but mostly a problem in new stands in northwest counties. |
CONTROL: |
Very competitive in new fall stands, so control in fall with application of BUTYRAC 200. January-February applied SINBAR and VELPAR for control in thinning stands. |
Jim Stritzke Former Alfalfa Weed Control Specialist Department of Plant and Soil Sciences Oklahoma State University |