Scarlet Pimpernel (Poor Man's Weatherglass, Red Chickweed)

• Common Name: Scarlet Pimpernel (Poor Man's Weatherglass, Red Chickweed)
• Latin Name: Anagallis arvensis
• Family Name: Primulaceae

Also known as Poor Man's Weatherglass, and Red Chickweed (although it is not related to the other Chickweeds), Anagallis arvensis contains saponins and a glycoside (cyclamine) that has been known to poison cattle, so best avoided.  The flower colour can vary from orange through to salmon and scarlet.