Eupatorium columbianum var. umbratile B.L.Rob. Contr. Gray Herb. 80: 17 (1928)

Nomenclatural References

• literature : Contr. Gray Herb. 80: 17. 1928 BHL link from IPNI metadata.
• person : Benjamin Lincoln Robinson (1864-1935) Based on occurrence of standard abbreviation 'B.L.Rob.' in the authors string.
• database : IPNI record: 99746-2
• database : The Plant List version 1.0, record: gcc-66010
• database : The Plant List version 1.1, record: gcc-66010