Melissa Petruzzello
Melissa Petruzzello
Encyclopædia Britannica Editor
BIOGRAPHY

Melissa Petruzzello is Assistant Managing Editor and covers a range of content including plants, algae, and fungi; insects and spiders; and renewable energy and environmental engineering. She also handles certain topics in Christianity, notably Protestant history and churches. She joined Britannica in 2009.

A passionate native plant gardener and conservationist, Melissa is a member of the Florida Native Plant Society and served on the Board of Directors of the St. Kateri Conservation Center. 

 

EDUCATION

M.S. Plant Biology and Conservation | Northwestern University, Evanston, IL. Her thesis examined plant-pollinator interactions in a Penstemon population in Zion National Park, UT. 

B.S. Biological Science; minor Biblical Studies | Biola University, La Mirada, CA.  

 

 

Primary Contributions (351)
Poison hemlock (Conium maculatum).
Poison hemlock, (Conium maculatum), poisonous herbaceous plant of the parsley family (Apiaceae). Poison hemlock is native to Europe and North Africa and has been introduced to Asia, North America, and Australia. All parts of the plant contain the poisonous alkaloid coniine and are toxic to…
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