Out & About …

… on the North York Moors, or wherever I happen to be.

Word of the day: tropism

From the Greek tropos meaning “a turning”, a tropism is the response in a plant’s growth due to an external environmental stimulus. There are many types, such as:

        • Hydrotropism, growth in response to water for example when the roots grow towards areas of higher moisture
        • Phototropism, in response to light
        • Thermotropism, in response to temperature

To name but three but I think this rowan tree in Newton Wood is displaying traumatropism, that is the regrowth due to earlier damage or trauma.

Loads of point if you can fit this on a Scrabble board.

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