Xylorhiza
Xylorhiza is a genus of flowering plants in the sunflower family, are known as woodyasters. These are daisylike wildflowers usually having blue to purple or white ray flowers with yellow centers of disc florets. Woodyasters are native to western North America.
; Species
- Xylorhiza cognata - Mecca woodyaster - California
- Xylorhiza confertifolia - Henrieville woodyaster - Utah
- Xylorhiza cronquistii - Cronquist's woodyaster - Utah
- Xylorhiza frutescens - Baja California
- Xylorhiza glabriuscula - smooth woodyaster - Wyoming, Utah, Colorado, Montana, South Dakota
- Xylorhiza orcuttii - Orcutt's aster - California
- Xylorhiza tortifolia - Mojave woodyaster - California, Nevada, Utah, Arizona
- Xylorhiza venusta - charming woodyaster - Utah, Colorado, New Mexico
- Xylorhiza wrightii - Big Bend woodyaster - western Texas, Chihuahua
