Xylorhiza tortifolia is a species of flowering plant in the family Asteraceae, known by the common names Mojave-aster and Mojave woodyaster.

[4] Xylorhiza tortifolia is a perennial herb or subshrub with branching, hairy, glandular stems that reach 60–80 centimetres (24–31 in) in height/length.

The head contains up to 60 or more lavender, pale blue, or white ray florets which may be over 3 centimeters long.

[10] A similar species, Xylorhiza wrightii−Big Bend aster, is native to the Chihuahuan Desert in western Texas and northern Mexico.

[10] The Havasupai used the plant for incense and fragrance, with ground leaves carried in the clothes and used as perfume by men and women to counteract body odors.