Trillium erectum, also known as purple trillium or wake flower, is a beautiful, but easily overlooked flower.
Part of the reason it is missed by so many hikers, is due to the fact that the flower itself faces down. From above, the deep purple petals are hardly noticeable.
Trillium is reliant upon two different species throughout its reproductive process. Flies, attracted by the plant's alluring odor of decay, pollinate the Trillium in the spring. As the bloom dies, and the ovary begins to decay, it's the ants turn to step in.
The ant is attracted to a special organ called an 'elaiosome' on the seed. The elaiosome is a structure rich in proteins and lipids. After the ants have consumed it, the seed itself is transported to a 'waste area'; this provides an excellent nutrient source for germinating seeds.
As picturesque as these flowers may be, picking them is quite harmful to the plant, and, in many places, is illegal. By picking the bloom, the leaf-like bract is damaged. The purpose of the bract is to supply food to the plant (the leaves themselves cannot perform this task, as they have been reduced to papery, underground coverings for the rhizomes). Damage to the plant can take as long as three years to fully recover. So, as far as this native lily goes, it's best to admire it, and leave it be.