Phegopteris alpestris var. americana (Butters) Jeps. Man. Fl. Pl. Calif. [Jepson] 29 (1925)

Nomenclatural References

• person : Frederick King Butters (1878-1945) Based on occurrence of standard abbreviation 'Butters' in the authors string.
• person : Willis Linn Jepson (1867-1946) Based on occurrence of standard abbreviation 'Jeps.' in the authors string.
• database : IPNI record: 192606-2