Oxalis, also known as yellow wood sorrel, is a delicate ground cover that gardeners love to hate, as it's a persistent weed that seems to reappear no matter what you throw at it. Its shamrock-like ...

Creeping oxalis is a small perennial weed that grows from stolons (creeping stems) and is typically found in lawns. Unlike many oxalis species such as pink shamrock (Oxalis vallicola), it doesn’t have ...

Pink shamrock is one of the more troublesome oxalis species in New Zealand horticulture and is commonly confused with the very similar fishtail oxalis. It re-establishes from bulbs in spring after ...