Trillium ovatum aka Pacific Trillium

Trillium ovatum, also known as the Pacific trillium, western wakerobin, western white trillium, or western trillium, is a species of flowering plant in the family Melanthiaceae. It is the most widespread and abundant trillium in western North America, found from southern British Columbia and the tip of southwestern Alberta to central California, east to Idaho and western Montana. However, there is an isolated population in northern Colorado and southern Wyoming. It is the only pedicellate-flowered Trillium species found within its range. Its type specimen was gathered by Meriwether Lewis in 1806 along the Columbia River during the return trip of the Lewis and Clark Expedition. Pacific Trillium is a super rare houseplant that thrives with regular watering and abundant sunlight, preferably less than 3 feet from a window. It prefers soil that is well-draining and does not require added fertilizers if repotted each time it doubles in size.