Word(s) of the day: “compass grass”, “clock grass” - common names for kinds of beach grass (Ammophila), given for their habit of inscribing perfect circles in sand when their leaves are swung by the wind.
— Robert Macfarlane (@RobGMacfarlane) January 29, 2018
Photo by @JamesPMarsden (”8.30 on the sand-clock”) pic.twitter.com/NvBN2O4V9e
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