Gunnera monoica, plant growing on shaded, rocky bank
Chilean Rhubarb in the gully of Bankwood Road Hamilton City
The Gunnerales are an order of flowering plants. In the APG III system (2009) it contains two genera: Gunnera (in family Gunneraceae) and Myrothamnus (in family Myrothamnaceae). In the Cronquist system (1981), the Gunneraceae were in the Haloragales and Myrothamnaceae in the Hamamelidales. DNA analysis was definitive, but the grouping of both families was a surprise, given their very dissimilar morphologies. In Cronquist's old system (1981, 1988), and Takhtajan's (1997), the Gunneraceae were in the Rosidae,...