Mimulus cupriphilus

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Species description

  • This species is restricted to two small copper mines in Calaveras County, California. It is highly branched and obligately annual. It is self-fertilising, but not cleistogamous. It has reduced corolla spots, and its corolla lobes are pointed. M. cupriphilus lack anthocyanins (red) in the stems. However, hybrids between M. guttatus and M. cupriphilus do have red stems.

Reference: Macnair

Location of Mimulus cupriphilus populations

Mimulus cupriphilus publications

Mimulus cupriphilus is the small-flowered green plant in the rear, while copper adapted M. guttatus is the large flowered plant in the foreground