Helianthus praecox Engelm. & A.Gray Boston J. Nat. Hist. 5: 221 (1845)

Nomenclatural References

• literature : Boston J. Nat. Hist. 5: 221. 1845 [Oct 1845] BHL link from IPNI metadata.
• person : Asa Gray (1810-1888) Based on occurrence of standard abbreviation 'A.Gray' in the authors string.
• person : George Engelmann (1809-1884) Based on occurrence of standard abbreviation 'Engelm.' in the authors string.
• database : IPNI record: 119226-2
• database : The Plant List v1.1 record gcc-7554
• database : The Plant List version 1.0, record: gcc-7554