How to identify yellow woodsorrel (Oxalis stricta)
yellow woodsorrel, also known as sourgrass, Upright Yellow-sorrel, slender yellow woodsorrel
Yellow woodsorrel is distinguished by its delicate, heart-shaped leaves that are grouped in threes, somewhat resembling a clover. It can be identified by its small, bright yellow flowers, each with five petals forming a subtle cup-like shape. The plant typically reaches a modest height, with stems that can stretch up to 15 inches (38 cm), often bending or reclining with maturity. These stems support the alternately arranged leaves and can vary from green to reddish in color. The fruit of yellow woodsorrel is a capsule that explosively dehisces, releasing seeds.
Lifespan: Perennial
Plant Type: Herb
Leaf Type: Semi-evergreen
Heart-shaped trifoliate leaves resembling clover
Bright yellow flowers forming cup-like shape
Stems reaching up to 15 inches (38 cm)
Explosive seed dispersal from cylindrical pods
Distinctive star-like arrangement of flower petals
The leaves of yellow woodsorrel feature heart-shaped trifoliate leaflets, each comprising three symmetrical leaflets. They typically measure about 0.5-2 inches (1.3-5 cm) across. The leaflets are a vibrant green, with a smooth, soft texture and a prominent midvein that divides each leaflet into two equal halves. The edges are entire, with no serration. The overall structure of the trifoliate leaves contributes to a clover-like appearance, making them easily identifiable.
The flowers of yellow woodsorrel are bright yellow and typically measure around 0.6 inches (1.5 cm) in diameter. Each flower has five petals arranged in a star-like formation, with delicate, slightly overlapping edges. The flowers are borne on slender stalks, emerging singularly or in small clusters. Blooming occurs from spring through fall. While not overtly fragrant, their vivid coloration makes them a standout feature in their natural habitat or garden settings.
The fruit of yellow woodsorrel is a distinctive cylindrical seed pod, notable for its ability to project its seeds explosively. When mature, these pods exhibit an impressive seed dispersal mechanism, capable of launching seeds up to 16 feet (approximately 5 meters) away from the parent plant. This unique trait aids in the propagation of yellow woodsorrel. The exterior of the pods is characterized by a green to brown hue, conveying their readiness to release seeds. The texture of these pods is initially firm, becoming dry and brittle as they mature and prepare for seed ejection.
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Scientific Classification of yellow woodsorrel
