Scientific Name Synonyms
- Impatiens glandulifera is a succulent annual than can be 3-10 ft. (0.9-3 m) tall. The stems are purple tinged, hollow and hexagonally angled.
- The foliage is opposite or whorled. Leaves are lanceolate to lance-ovate with acuminate tips. Leaves are simple, serrate and 6 in. (15.2 cm) long.
- Flowering occurs from June to October. The pink, irregular, solitary flowers appear on axillary stalks.
- Fruits are five chambered capsules that, when mature, explode expelling seeds forcefully. Each plant produces about 800 seeds.
- Ecological Threat
- Impatiens glandulifera occurs in areas with high soil moisture, such as riparian areas. It is tall for an annual plant, has a fast growth rate, reseeds aggressively and outcompetes native vegetation. Plants are partially shade tolerant. It is native to India.
- Global Invasive Species Database. 2011. Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission
- King County Department of Natural Resources and Parks Water and Land Resources Division
- Oregon Department of Agriculture Plant Programs, Noxious Weed Control
- Washington State Noxious Weed Control Board
- NOBANIS – Invasive Alien Species Fact Sheet
- Invasive Plant Atlas of New England (IPANE)
- University of California, Jepson Flora Project
- Wildscreen, ARKive
- USDA NRCS PLANTS
- USDA ARS GRIN
Images from Bugwood.org