Joy Marsden Mastrogiuseppe

About Joy Marsden Mastrogiuseppe

Current President of Crater Lake Institute

Crater Lake Institute was founded by Joy’s husband, Ron Mastrogiuseppe.

Research in botanical systematics, floristics, plants & environment, responses to disturbance, vegetation change, archaeobotany, ethnobotany, wood structure.

Focus on Carex and other wetland plants, western US plants, plant/people relationships.


Retired Curator of Washington State University Ownbey Herbarium


Curator, WashingtonState University Museum of Anthropology


Botanist, U.S. Forest Service


Private botanical consultant

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