Watercress (Arabidella nasturtium)
Description
Watercress is an aquatic plant species with the botanical name Nasturtium officinale. This should not be confused with the profoundly different and unrelated group of plants with the common name of nasturtium, within the genus Tropaeolum. Watercress is a rapidly growing, aquatic or semi-aquatic, perennial plant native to Europe and Asia, and one of the oldest known leaf vegetables consumed by humans. It is a member of the family Brassicaceae, botanically related to garden cress, mustard, radish and wasabi—all noteworthy for their piquant flavor. The hollow stems of watercress will float; the leaf structure is pinnately compound. Small, white and green flowers are produced in clusters and are frequently visited by insects, especially hoverflies such as Eristalis flies.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Magnoliopsida
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Order: Brassicales
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Family: Brassicaceae
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Genus: Arabidella
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