Mimulus flowers can quite often be seen in gardens but it is rare to find Mimulus Luteus in the wild.  I am familiar with the wild yellow Monkey flowers which grow beside streams but these similar flowers which are fairly rare, are almost red and known as Blood-red-emlets.  There are no houses anywhere near or upstream but there were many plants growing alongside the stream. Originally they were introduced to British gardens from Chile in the 1826 century and have since escaped into the wild being more often found in Scotland than further south in Britain.
They got their name as apparently they look like monkey faces.