Ozark Green Trillium, a native plant, has been added to the USWildflowers’ database (11/03/2019.) Scientific name is Trillium viridescens. Photo below was along the Sugar Camp Scenic Byway, Mark Twain National Forest, Barry County, MO on Apr 21, 2019. Go to the Ozark Green Trillium detail page for more information and photos.
Ozark Green Trillium – Trillium viridescens