Mitella diphylla (twoleaf miterwort,<ref>Template:PLANTS</ref> two-leaved mitrewort,<ref name=BSBI07>Template:Cite web</ref> or bishop's cap)<ref name="illinois">Template:Illinois Wildflowers</ref> is a clump forming, open woodland plant native to eastern North America.
Miterwort grows from a rhizomatous root system with fibrous roots. Leaves are coarsely toothed with 3-5 shallow lobes.<ref name="flora">Template:EFloras</ref> Most leaves are basal, and there is one opposite pair of stemless leaves on each flower stalk.
The seeds are tiny, Template:Cvt,<ref name="flora" /> produced in small green cups, formed from the sepals of the flower, and when ripe are shiny and black.<ref name="minnesota">Template:Minnesota Wildflowers</ref> They are spread when raindrops hit the cups and splash the seeds out.<ref name="illinois" />
The flowers produce both pollen and nectar. Due to their small size, they are mainly visited by small bees and flies: for instance, Lasioglossum sweat bees, small carpenter bees (Ceratina) and hoverflies.<ref name="pollinators">Template:Cite book</ref>
This species is grown as an ornamental plant in shade gardens. It prefers wet-mesic to dry soil and partial shade.<ref name="pollinators" />