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