[Wikipedia] Africa, Sinai, Southern Europe Native, Description: Mesembryanthemum crystallinum is a prostrate succulent plant native to Africa, Sinai and southern Europe, and naturalized in the New World. The plant is covered with large, glistening bladder cells or water vesicles, reflected in its common names of common ice plant, crystalline ice plant or ice plant.[1] (link added by Mary Ann Machi)
Calflora:
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[web application]. 2025.The Calflora Database
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https://www.calflora.org/(Accessed: 03/29/2025).