xylorhiza genus --- Aster subfamily 2.2
Mojave woodyaster (Xylorhiza tortifolia) -- in March -- U.S. 95 in southern Utah blue & purple NV-S
charming woodyaster (Xylorhiza venusta) -- in March -- rt. 128 north of Moab, southern Utah white & cream UT-S
charming woodyaster (Xylorhiza venusta) -- in April -- rt. 128 north of Moab, southern Utah white & cream