Locoweeds

oxytropis-lambertii_locoweed_kcs-co_lah_3438nefI was hiking on a nearby ranch last week when we came across some spectacular wildflowers. As I knelt to grab some photos, my plant expert companion remarked, “You know that’s locoweed. We should pull it out!”

What? Destroy these beauties? Why? I was about to receive an education.

Locoweed (or crazyweed) is the common name for two genera of western plants, Oxytropis (left) and Astragalus (also called milkvetch), both in the pea family, and both including some species that contain the toxin swainsonine. Swainsonine interferes with protein metabolism and causes nerve damage.

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