"Flora is an historical thriller set in 1929. The film follows a small expedition of University botanists through an uncharted forest system on the North American frontier. The students discover an old piece of flora which survives alone without insects, mammals or bird life. Soon, trapped in the empty toxic forest, the expedition members must fight to survive, escape and understand the wild and terrifying flora that surrounds them."Indie horror Flora popped up on Dread Central the other day.
The period setting and enigmatic antagonist (possibly a bit like The Thing, The Ruins, or even Day Of The Triffids) made me think there might be some Call Of Cthulhu adventure inspiration to be mined here.