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Asteraceae
Xylorhiza
Xylorhiza cognata
Xylorhiza cognata
No common name
(H.M.Hall) T.J.Watson 1977 -
Brittonia 29(2): 204 (1977)
Specifications
Images
Synonyms
Xylorhiza standleyi
Davidson
Aster standleyi
Davidson
Machaeranthera cognata
(H.M.Hall) Cronquist & D.D.Keck
Aster cognatus
H.M.Hall