Invasive Species Council of British Columbia
Invasive Plant

Smallflower touch-me-not

Impatiens parviflora

About This Species

Smallflower touch-me-not (Small balsam) is an herbaceous annual species introduced from Europe and Asia that is often found growing in moist soils such as those around rivers, streams, and wetlands ecosystems. Although this species prefers moist soils, it is tolerant to a range of sun exposures, soil types, and climates, making it difficult to eradicate. 

How to Identify

Smallflower touch-me-not is a twiggy, branching, fine-textured plant that ranges in height from 20-80 cm tall. 

Flowers are pale yellow on thin stalks, with slightly darker yellow-orange centers. 

Leaves are serrated, glossy and 3-12 cm long.  

 

Credit: J Samanek, Phytosanitary Administration, Bugwood.org

Take Action

Prevention is the best approach.

Plantwise

Plantwise

Learn about best practices

A few non-invasive alternatives to plant instead of Smallflower touch-me-not include:

  • Paintbrush (Castilleja spp.)
  • Avens (Geum coccineum)

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INVASIVE SPECIES INFORMATION

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