Yellow Woodsorrel (Note: The plant pictured is a broadleaf weed, Oxalis stricta, not a grass)
Oxalis stricta · Herbaceous perennial broadleaf weed
AI-generated identification · may be incorrect
Grass Category
Invasive/Weed Plant
Hardiness Zones
USDA Hardiness Zones 3 through 9
Grass Family
Oxalidaceae (Not a grass family; Poaceae is the true grass family)
Variety / Cultivar
Common wild type
About This Grass
Features distinctive clover-like heart-shaped leaflets in groups of three, slender stems, and small yellow flowers, often mistaken for clover or considered a lawn weed.
Blade Characteristics
Not applicable as this is a broadleaf plant, featuring trifoliate leaves with heart-shaped leaflets.
Root System
Fibrous root system with delicate taproot and creeping rhizomes/stolons.
Growing Information
Origin Region
Native to North America, widely distributed across temperate regions
Growth Habit
Stoloniferous and erect, spreading by seeds and underground stems
Sunlight & Water Needs
Adapts well to full sun or partial shade; moderate moisture requirements, highly resilient.
Mowing & Maintenance
Survives low mowing by hugging the ground; controlled via broadleaf herbicides or hand-pulling.
Special Characteristics
High persistence in lawns, acidic sap containing oxalic acid, tolerant of various soil conditions.
Ecological Information
Considered a common lawn weed, provides minimal specialized wildlife value compared to native forbs.