a type of orchid (= a plant with unusually shaped flowers) that grows in North America and has yellow flowers that are purple at the end, and a single leaf with thin pale stripes on it:

Putty root is found across the eastern US and Canada from Louisiana to Quebec.

Finding an orchid is always a treat, so I was delighted when I came across several putty-roots. 找到兰花总是一种享受，所以当我遇到几株油灰根时，感到分外高兴。