Juncus luciensis is a species of rush known by the common name Santa Lucia dwarf rush. It is endemic to California, where it is uncommon.[1]
This species is an annual herb growing just a few centimeters tall. It is yellowish green in color. The leaves are up to 1.5 centimeters long. The inflorescence contains one or two flowers with yellow-green tepals. The fruit is a greenish or sometimes red-tinged capsule containing seeds which are no more than 0.4 millimeters long.[1] [2]
This plant can be found only in California, where it occurs in the Peninsular Ranges and the Transverse Ranges, as well as the Santa Lucia and Diamond Mountains farther north.[2] Here it grows in moist and wet areas such as vernal pools, seeps, streambanks, and meadows.[1] [2]