Helianthus × ambiguus (Torr. & A.Gray) Britton Rhodora 56: 202 (1954)

Nomenclatural References

• literature : Rhodora 56: 202. 1954 designated hybrid by R.W. Long in publ. cited here. BHL link from IPNI metadata.
• person : Asa Gray (1810-1888) Based on occurrence of standard abbreviation 'A.Gray' in the authors string.
• person : John Torrey (1796-1873) Based on occurrence of standard abbreviation 'Torr.' in the authors string.
• person : Nathaniel Lord Britton (1859-1934) Based on occurrence of standard abbreviation 'Britton' in the authors string.
• database : IPNI record: 211993-1
• database : The Plant List version 1.0, record: gcc-22921
• database : The Plant List version 1.1, record: gcc-22921