Lupinus Sulphureus, or more commonly know as Sulphur Lupine, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) with green foliage and yellow flowers of the genus Lupinus. It has a rapid growth rate and a height of 10 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during early summer, is intolerant of shade and is routinely available commercially. Lupinus Sulphureus or Sulphur Lupine's floral region is North America US Lower 48, specifically in the states of Oregon and Washington.
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