Piperia michaelii
 Piperia michaelii is an uncommon species of orchid known by the common names Michael's rein orchid and Michael's piperia. It is endemic to California where it is known from the coastal plains hills and mountains and the Sierra Nevada foothills. It can be found in varied habitat including scrub woodland and forest. This orchid grows erect to about 70 centimeters in maximum height from a bulbous caudex. The basal leaves are up to 24 centimeters long by 5 wide.