Mustard (Guillenia)
Description
Guillenia is a small genus of mustard plants containing three species. These are sometimes treated as members of the jewelflower genus Caulanthus. They are native to western North America.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Capparales
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Family: Brassicaceae
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Genus: Guillenia
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