Scoliopus hallii, commonly known as Oregon Fetid Adderstongue, is a perennial herb native to the moist, shaded forest floors of the coastal regions of Oregon, particularly within the understory of redwood forests. It typically grows to a height of 0.5-1 feet (0.2-0.3 meters) and a width of 0.3-0.5 feet (0.09-0.2 meters). This plant is characterized by its mottled leaves and small, intricate flowers that exhibit a unique blend of cream, purple, red, and green hues, blooming in the early spring. The flowers are often hidden beneath the foliage, adding a subtle charm to its appearance.

Oregon Fetid Adderstongue is appreciated for its distinctive foliage and flowers, which can add an exotic touch to shade gardens. It is used in cultivation primarily for naturalistic plantings in woodland gardens and as an understory plant in shaded areas. It requires consistently moist soil with good organic content and thrives in part shade to full shade conditions. While it is not commonly found in the nursery trade, it can be a unique addition for collectors of native plants or those looking to create a diverse shade garden. Care should be taken to avoid overly dry or sunny locations, as this can stress the plant.CC BY-SA 4.0