Yellow Alyssum (Alyssum alyssoides), aka pale madwort, is a member of the Brassicaceae (i.e. mustard) family. I know I’ve seen these flowers many, many times but was able to finally identify it only last year.

Yellow Alyssum, South Valley Park

Yellow Alyssum, South Valley Park

Yellow Alyssum is not native to the U.S. and, along with a few other mustard relatives, is generally considered to be a “troublesome weed” that threatens native grasses. Early physicians used this plant as a cure for hiccups, rabies, and madness.

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