|Dithyrea californica near Baker, CA|
1 or 2; see text
Dithyrea (shieldpod) is a small genus of flowering plants in the mustard family containing only one or two species. The California shieldpod or spectacle-pod, Dithyrea californica, is an abundant and unique-looking herb native to the southwestern United States and northern Mexico. The beach shieldpod, Dithyrea maritima, a rare plant found only on the coast of California and Baja California, is sometimes considered a subspecies of D. californica.
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