we were able to identify a highly sensitive (orchids, 31%) and a low-sensitive group (dandelions, 29%), we also detected a third group (40%) characterised by medium sensitivity, which we refer to as tulips in keeping with the flower metaphor.

https://t.co/xNoAw1fRAQ

Like so many botanical concepts, the flower clock originated with the Swedish ur-taxonomist Carl Linnaeus, in his 1751 treatise “Philosophia Botanica.” Based on field observations, he divided flowers into three categories. The meteorici open and close with the weather. The tropici follow the changing hours of daylight. And the aequinoctales,

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