
Edmondston's Chickweed (Cerastium_nigrescens)
Is a little plant with white flowers which is endemic from Shetland Islands.
Habitat:
Keen of Hamar, Unst. Although reported from two other sites in the 19th century, it currently grows only on two serpentine hills on the island of Unst (see Keen of Hamar)

''Cerastium nigrescens'', commonly known as the Shetland Mouse-ear, Shetland Mouse-eared Chickweed or Edmondston's Chickweed, is an endemic plant found in Shetland, Scotland.
It was first recorded in 1837 by botanist Thomas Edmondston, who was 12 at the time. For a long time it was synonymised with Arctic Mouse-ear ''Cerastium arcticum'' but it is now widely regarded as a separate species. Although reported from two other sites in the 19th century, it currently grows only on two serpentine.. more
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