Phacelia vallicola
 Phacelia vallicola is a species of phacelia known by the common name Mariposa phacelia. It is endemic to California where it is known only from the Sierra Nevada and adjacent southermost slopes of the Cascade Range. It grows in coniferous forest chaparral and other mountain and foothill habitat. It is an annual herb growing erect to a maximum height around 27 centimeters. It is coated in soft and stiff hairs. The leaves are oval or lance-shaped smooth-edged and borne on short petioles.