Irvine Regional Park, Irvine, Orange Co., CA 3-9-08. © Joan Avise

Stinging Lupine

Lupinus hirsutissimus

Fabaceae

The hairs are very stiff and can puncture the skin, leading to a painful sting when they are touched.

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Whiting Ranch Wilderness Park, Trabuco Cyn, Orange Co., CA 3-28-10. © Joan Avise

Irvine Regional Park, Irvine, Orange Co., CA 3-9-08. © Joan Avise

Irvine Regional Park, Irvine, Orange Co., CA 3-9-08. © Joan Avise

Irvine Regional Park, Irvine, Orange Co., CA 3-9-08. © Joan Avise