Tuesday, July 2, 2019

Aaron’s Beard

Aaron’s Beard, or Saint John’s Wort, is a short, spreading shrub native to southeast Europe and southwest Asia. It is used as an ornamental, landscape plant in North America, where it often escapes to become a noxious, invasive plant. Erika and I found it along a parking lot edge at Saint Martin’s University on 28 June 2019. According to Wikipedia, extracts from these plants reduce depression in mice without various side effects shown in other, similar antidepressants. I suppose, if that’s what you do for a living, a depressed mouse is easy enough to recognize.

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