Himalayan balsam seed dispersal

Himalayan balsam seed dispersal

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Himalayan balsam (Impatiens glandulifera) seed dispersal. High-speed photograph capturing the explosive seed dispersal of the Himalayan balsam. The fruit wall (seed case, upper left) is made up of five segments. The cells making up these segments are full of water at a high pressure (turgor-pressure). There are weaknesses between the segments so the slightest vibration causes the segments to separate violently, thus exploding and releasing the seeds across several metres.

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Keywords: angiosperm, angiosperms, biological, biology, botanical, botany, close-up, detail, dispersal, dispersed, dispersing, exploding, explosive, flora, fruit, high-speed photography, himalayan balsam, impatiens glandulifera, nature, part, parts, plant, plants, policeman's helmet, policemans helmet, reproduction, reproductive structure, seed, seed case, seeds

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