Nothing more than a humble
wayside flower. Rather common, in point of fact!
According to the Webster's
Dictionary, a scarlet pimpernel is:
1 : a common pimpernel
(Anagallis arvensis) having scarlet, white, or purplish flowers
that close in cloudy weather
2 [Scarlet Pimpernel,
assumed name of the hero of The Scarlet Pimpernel (1905), novel
by Baroness Orczy] :
a person who rescues others from mortal danger
by smuggling them across a border