Hey, this is not Imaptiens thomsonii - Thomson's Balsam is a very tiny flower, smaller than the width of your forefinger. This looks like *Impatiens glandulifera*, the Himalayan Balsam, characterized by its club-shaped seed-pod. I guess most people would not have noticed it in the midst of the more common Impatiens sulcata. Impatiens sulcata has a narrow cylindrical fruit. I always wanted to see this one in the Valley of Flowers - great catch! - Tabish
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