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Genus of the Week

Week of July 13-19

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This page has been created for people who want to learn more about plants, especially in the context of their taxonomy (Latin names, etc.). This is by no means an exhaustive list of all available Web resources on a particular genus.
Visit the Land of the Glandular Trichomes, a microscopic look at plants in the Lamiaceae family.

This week's genus:


Subclass: Dicotyledoneae
Superorder: Magnoliidae
Order: Papaverales
Family: Papaveraceae
Number of Species: at least 16, with several subspecies

Plants in the genus Argemone are native to America. The leaves and stems of these plants are often covered with prickles, hence the common name Prickly Poppy. Typical of the Papaveraceae family, these plants usually exude a milky or yellowish sap when wounded. The seeds of A. mexicana contain oils that can be used to make soap.

Here are a few links to images and descriptions of different species:


  1. Heywood, V.H., ed. Flowering Plants of the World. New York, Oxford University Press: 1993.
  2. Neiring, William A. and Nancy C. Olmstead., eds. The Audubon Society Field Guide to North American Wildflowers, Eastern Region. Alfred A. Knopf, New York: 1979.

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