Heuchera maxima Greene, Bull. Calif. Acad. Sci. 2(6B): 149 1886. ;
USA (California: Sta. Cruz Isl.) as per Catalogue of Life;

Heuchera maxima Greene
Common names:  Island alum root, Channel Islands coral bells
Rhizomatous perennial native to Channel Islands California with large multilobed with long petioles and white to pink flowers on up to 60 cm long erect inflorescence’
Photographed from University of California Botanical Garden, 22-4-2019 


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