Thank you for identifying the horrid weed I've been fighting all summer. I thought it was called bronze sorrel. I'd never seen it a few years ago and now it's everywhere. I don't know if the birds or the deer brought it in but as you note, it hides under my daphne and my california poppies.
It's totipotent, even more so than tansy ragwort.
I dig out it out everywhere I find it but it just keeps coming back.
I'm trying an experiment, I dug out an especially tenacious patch of the oxalis in the gravel walkway between my garden beds, and doused the resulting hole with a shot of heavy duty vinegar(20% vinegar, available at Mud Bay, I think). I've found that hitting the hole where you dig out Tansy ragwort with a good sized dose of white vinegar (regular strength) seems to finally kill the tansy rootlets. I am hoping it works with the oxalis, too. Death to both weeds!
Please explain the inappropriate content below.
