Flower or weed up to you Tiny flowers in white, purple and pink.
There are several types of oxalis that grow as hard-to-kill weeds in New Zealand. Most are fairly low growing and have small bulbs in the ground. The bulbs are hard to get rid of, and can easily be spread when the soil is disturbed or by the plant as it spreads.
The oxalis plants most commonly found as weeds in New Zealand generally produce small pink, white, or yellow bulbs.
Note: Not all Oxalis are a problem. The New Zealand Yam is actually a member of this family.