Phacelia Phacelioides, or more commonly know as Mt. Diablo Phacelia, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) of the genus Phacelia. Its duration is annual which means it grows for one season only. Phacelia Phacelioides or Mt. Diablo Phacelia's floral region is North America US Lower 48, specifically in the state of California.
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