. Building salt marshes along the coasts of the continental United States. Marsh ecology; Marshes. (1) Pickleweed. This plant is a frequent colonizer of inter- tidal flats in the more saline waters all along this coast (Figs. 16 and 18). It is a fleshy-stemmed, weedy-type plant that spreads readily vegetatively and by seeds. It invades and covers bare areas rapidly but is unable to persist far down in the tidal range because unlike Pacific cordgrass, farther south, this plant is not equipped to supply oxygen to the roots from the aboveground parts. Pickleweed forms a dense mat above the soil s
. Building salt marshes along the coasts of the continental United States. Marsh ecology; Marshes. (1) Pickleweed. This plant is a frequent colonizer of inter- tidal flats in the more saline waters all along this coast (Figs. 16 and 18). It is a fleshy-stemmed, weedy-type plant that spreads readily vegetatively and by seeds. It invades and covers bare areas rapidly but is unable to persist far down in the tidal range because unlike Pacific cordgrass, farther south, this plant is not equipped to supply oxygen to the roots from the aboveground parts. Pickleweed forms a dense mat above the soil surface, but it is shallow-rooted and is not as effective as a stabilizer as some of the grasses and sedges. Pickle- weed is easy to plant, seeds profusely, and often invades disturbed sur- faces the first growing season. It is the most logical plant to use at the low elevations down to slightly below mean low high water (MLHW) where salinities occasionally approach sea strength. It should be sup- plemented with other species at the higher elevations. (2) Sedge. Sedge marshes usually occur on silty substrates just above colonizing arrowgrass, down to MTL (Fig. 20) (Jefferson, 1973). This plant is less salt-tolerant than pickleweed and is most likely to occur on river delta marshes. It is both taller and a better stabilizer than pickleweed. It is probably the best choice for planting in the intermediate zone where the salinity is not too high. Sedge is plentiful in this region and relatively easy to transplant (Ternyik, 1977).. Figure 20. Mature Lyngby sedge. 50. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Woodhouse, W. W. (William Walton), 1910-. Ft. Belvoir, Va. : U. S. Army, Corps of Engineers, Coastal Engineering Research Center
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