Najas Flexilis, or more commonly know as Nodding Waternymph, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) with green foliage and green flowers of the genus Najas. It has a rapid growth rate and a height of 2.5 feet at maturity. Its duration is annual which means it grows for one season only. It's active growth period is spring summer fall, blooms during late summer and is somewhat tolerant of shade. Najas Flexilis or Nodding Waternymph's floral region is North America US Lower 48 and Alaska, specifically in the states of Alaska, Arizona, California, Connecticut, Iowa, Idaho, Illinois, Indiana, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Montana, North Dakota, Nebraska, New Hampshire, New Jersey, New York, Ohio, Oregon, Pennsylvania, Rhode Island, South Dakota, Utah, Virginia, Vermont, Washington and Wisconsin.
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