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Either of three impatiens species, also known as jewelweed or snapweed, that grow in moist areas. Impatiens capensis, also called I. biflora, typically has crimson-spotted orange flowers; I. pallida has yellow to white flowers, sometimes spotted with brownish-red. They are common weeds native to extensive regions of eastern North America. I. noli-tangere, widespread in Europe, Asia, and western North America, has yellow flowers. The juice of the stems and leaves of all three species is said to be a remedy for poison-ivy rashes.
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