Xylorhiza tortifolia var. tortifolia

Nomenclatural References

• person : Asa Gray (1810-1888) Based on occurrence of standard abbreviation 'A.Gray' in the authors string.
• person : Edward Lee Greene (1843-1915) Based on occurrence of standard abbreviation 'Greene' in the authors string.
• person : John Torrey (1796-1873) Based on occurrence of standard abbreviation 'Torr.' in the authors string.
• database : The Plant List v1.1 record gcc-36044
• database : The Plant List version 1.0, record: gcc-36044