(Impatiens parviflora )
Priority: - Control
Identification and Reproduction
- Also known as small-flowered jewelweed, is an annual flowering plant.
- It grows up to 60 cm in height, with a shallow root system.
- Its leaves have toothed edges and are alternate in arrangement.
- It has small pale yellow flowers, appearing like a pouch.
- Small touch-me-not is spread by seeds which burst out if its seed pods.
Reproduces by seed.
Habitat & Ecology
- This plant is typically found in forestlands and forest edges. It invades forest edges, disturbed sites, edges of waterways, and prefers moist soil.
- Because of its small and inconspicuous form it has gone unnoticed and is much more widespread than thought.
- Small touch-me-not can quickly disperse across the forest floor. This can effect forest regeneration.
- It crowds out native species and ultimately reduces biodiversity.
- Since this plant has a shallow root system it is fairly easy to hand pull. It is recommended to pull when soil is damp so roots will be removed as well.
- Avoid treatments during flowering stages. Any disruptions may cause seeds to disperse further around the site.
- Do not compose; dispose the plant properly at the landfill.
For more information check out the Washington State: Noxious Weed Control Board's page on Small-flowered Jewelweed here. Note this is a US resource and Canadian guidelines and regulations may differ. Be sure to read product labels carefully.
E-flora BC provides a good guide on how to properly identify small touch-me-not.
Header photo (Syrio).