Nick Upton / Spiny broom (Calicotome villosa) with endemic Mouse ear chickweed (Cerastium supramontanum) amongst it. Branched asphodel (Asphodelus ramosus) in background with mountains beyond. Supramonte range, ne...

Nick Upton / Mouse ear chickweed (Cerastium supramontanum) amongst Spiny broom (Calicotome villosa). Branched asphodel (Asphodelus ramosus) in background with mountains beyond. Supramonte range, near Urzulei, Sard...

Philippe Clement / Shetland Mouse-eared Chickweed (Cerastium nigrescens) in flower, Keen of Hamar, Unst, Shetland Islands, Scotland, UK, May

Guy Edwardes / Shetland Mouse-eared chickweed (Cerastium nigrescens), Keen of Hamar National Nature Reserve, Unst, Shetland, Scotland, UK, August.

Guy Edwardes / Shetland Mouse-eared chickweed (Cerastium nigrescens), Keen of Hamar National Nature Reserve, Unst, Shetland, Scotland, UK, August.

Guy Edwardes / Shetland Mouse-eared chickweed (Cerastium nigrescens), Keen of Hamar National Nature Reserve, Unst, Shetland, Scotland, UK, August.

Guy Edwardes / Shetland mouse-eared chickweed (Cerastium nigrescens), Keen of Hamar National Nature Reserve, Unst, Shetland, Scotland, UK, August.

Melvin Grey / Edmondston's chickweed (Cerastium nigrescens) growing in rocks, Unst, Shetland, Scotland UK. June.

Melvin Grey / Edmondston's chickweed (Cerastium nigrescens) growing in rocks, Unst, Shetland, Scotland UK. June.

Chris Mattison / Edmonston's chickweed (Ceratium nigrescens) growing amongst serpentine rubble, Keen of Hamar, Unst, Shetlands, Scotland, June.

Bryan and Cherry Alexander / Tundra flowers including Arctic Mouse-ear Chickweed (Cerastium arcticum) and Mountain sorrel (Oxyria digyna) by an ancient whalebone on a beach at Sundesnet, Barentsoya, Svalbard, Norway.

Adrian Davies / Shetland mouse ear / Edmonston's chickweed(Cerastium nigrescens) Keen of Hamar, Unst, Shetland, Scotland, UK, June.