Polemonium pulcherrimum var. haydenii Brand Pflanzenr. , IV, 250: 35 (1907)

Nomenclatural References

• literature : Das Pflanzenreich: Regni vegetablilis conspectus. (1900-1937) at BHL. From parsing micro citation.
• person : August Brand (1863-1930) Based on occurrence of standard abbreviation 'Brand' in the authors string.
• database : IPNI record: 288103-2