In temperate climates, sago is one of the first submersed plants to begin spring growth. Elongation begins in various hibernating organs when water temperatures reach about 10 C--from late March to late June in the Northern Hemisphere. Plants reach the water surface in May to mid-July, and, about 2 weeks later, healthy stands can cover much of the water surface. Plants can reach the water surface more rapidly under low light conditions common in eutrophic or brackish waters. |
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