Impatiens flowerImpatiens is a genus of about 800-900 species of flowering plants in the family Balsaminaceae. The genus has a wide distribution throughout the northern hemisphere and tropics. They produce flowers from early summer until the first frost; tropical species can flower all year. They can exist both in, and out, of direct sunlight.

Major common names for one or more species include balsam, jewelweed and busy lizzie.

The plant derives its scientific name Impatiens ("impatient") and the common name "touch-me-not" from the plant's seed pods. When the seeds pods mature, they "explode" when touched, sending seeds several metres away. This mechanism is also known as "explosive dehiscence".

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