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Creeping Oxalis Oxalis corniculata  or  Creeping Buttercup Ranunculus repens

creeping-oxalis

 

Synopsis

Both weeds are widely distributed throughout the coastal and tableland areas of Australia. Both species are herbs and thrive in damp wet soils. Creeping Oxalis has a rhizomatous growth habit and depending on environmental factors can be both an annual and perennial weed. Creeping Buttercup is an annual/perennial herb and has a stoloniferous growth habit and becomes matt forming if not managed. The main distinguishing features between both weeds is the leaf shape. Creeping oxalis has a smooth heart shaped leaf, whereas creeping buttercup has serrated or wavy type leaf margins. Complete eradication can be difficult and often require repeated herbicide applications.

 

 Creeping Oxalis

The origin of this weed is primarily from South America and possible Europe. It is also known commonly as yellow wood sorrel. It was most likely introduced to Australia from Britain as an ornamental ground cover due to its small bright yellow flowing petals. Oxalis can withstand close mowing and thrives in damp soil conditions. It can be a troublesome weed in both Bent and Couch grass golf and bowling greens, sports fields and garden beds. Creeping Oxalis has a rhizomatous growth habit and depending on environmental factors can be both an annual and perennial weed.
Control in Turcopoles eradication can be difficult and the use of selective herbicides that contain a combination of actives such as Chlorpyralid, Diflufenican, Dicamba, Idosulfuron-Methyl, Bentazone and Prosulfuron /Dicamba mix (Casper). Repeat applications 14 days apart provides good control

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