Plants 5-15(-25) cm. Leaves: blades 10-50 × 1-2 mm. Invo-lucres broadly obconic, 2.5-4 mm. Ray florets 2-8; laminae 0.5-3 mm. Disc florets 1-7. 2n = 16.

Flowering May-Aug. Sandy places, meadows; of conservation concern; 1200-2300 m; Calif.

Jensia yosemitana is known from widely scattered sites on the western slopes of the Sierra Nevada, at higher elevations than most populations of J. rammii.