Himalayan balsam
Impatiens glandulifera Royle


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.


Selected Images


EDDMapS Distribution

EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

State Regulated List

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Rosidae
Order: Geraniales
Family: Balsaminaceae
Genus: Impatiens
Subject: Impatiens glandulifera Royle

Synonyms and Other Names

Related Scientific Names:
Impatiens roylei Royle (Synonym)


Plants - Forbs/Herbs