Oxalis debilis

pink woodsorrel

Nonnative to Florida

Species Overview

Introduced to the United States as an ornamental plant, Pink woodsorrel (Oxalis debilis) was documented in Florida as early as 1930. While considered invasive in parts of the Pacific and Asia and noted to be spreading quickly in the US, it has not been designated as invasive in Florida. There are eight species of Oxalis documented in Florida although only two are native.

Species Characteristics

Family: Oxalidaceae

Habit: Perennial herb, 6-12 inches in height.

Leaves: Compound with 3 heart-shaped leaves per stem.

Flowers: 2-12 flowers are clustered in an umbellate cyme. Individual flowers are pink to lavender with 5 veined petals and yellow stamen.

Reproduction: Small ovoid bulbs and rhizomes.

Distribution in Florida: Statewide

Impacts

Some consider it to be problematic in home landscapes and food gardens as it can form dense colonies via rhizomes. It is also very adaptable to many growing conditions and habitats.

Control Methods

Preventive Measures

Check any incoming plant material for stowaways.

Cultural/Physical

Hand pull ensuring all bulbs and rhizomes are removed.

Mechanical

Mowing is ineffective and rototilling can actually stimulate growth and spread rhizomes.

Biological

None known.

Chemical

Recommendations for a different Oxalis species can be found here. Consult your local IFAS Extension office for site specific recommendations.

Learn more about this species

Atlas of Florida Plants

EDDMapS

USDA Plant Database

 

Invasive Species Compendium

Flora of North America