This photo of Gunnera manicata was taken at Dart's Hill Garden in Surrey BC. The two most commonly available giant Gunneras that we see in the PNW are Gunnera manicata & Gunnera tinctoria (syn. Gunnera chilensis). Unfortunately G. tinctoria is often sold as G. manicata & it can be difficult to tell the difference until they flower. A non scientific way to tell the difference is that the inflorescence of G. Manicata resembles a Bottle Brush while those of G. tinctoria resemble Corn on the Cob! If planted in the same conditions G. manicata will be larger in every way.