Natural Communities of NH -- Photo Guide

Bulblet umbrella-sedge open sandy pond shore  (S2)



Bulblet umbrella-sedge open sandy pond shore
is a sparsely-vegetated community that occurs along wave and ice disturbed shores in central and southern parts of the state. It forms a narrow strand between open water or unvegetated, wave-washed sand beach and more densely vegetated, less-disturbed areas on higher ground. The substrate is sand or sand with low quantities of organic matter. Short, clumped graminoids dominate, and rhizomatous forbs and graminoids are present.

With several species of coastal plain distribution, this community is similar to meadow beauty sand plain marsh and twig-rush sandy turf pond shore, but it has a much lower total percent cover than either, has a greater prominence of ruderals, and lacks the robust graminoids of the twig-rush community.

Characteristic vegetation: Species include native ruderals such as bulblet umbrella-sedge (Cyperus dentatus), lance-leaved violet (Viola lanceolata), mud rush (Juncus pelocarpus) (rhizomatous), and common beggarticks (Bidens frondosa). These species are nearly constant and vary from low to moderate abundance. Other frequent species include panic-grasses (Panicum spp.; annuals and perennials), rough bentgrass (Agrostis scabra), golden pert (Gratiola aurea), small headed white aster (Symphyotrichum racemosum), broom sedge (Carex scoparia), slender spike-rush (Eleocharis tenuis), fine grass-leaved goldenrod (Euthamia caroliniana), common grass-leaved goldenrod (Euthamia graminifolia), marsh St. John's-wort (Triadenum virginicum), and pipewort (Eriocaulon aquaticum). Frequent annuals include small-flowered gerardia (Agalinis paupercula), small bidens (Bidens discoidea), fireweed (Erechtites hieraciifolia), and sometimes, on wetter or less exposed sections, least spike-rush (Eleocharis acicularis).


Good examples of this community occur in the Ossipee Lake Natural Area along the south shore of Ossipee Lake (Ossipee) and at Lake Massabesic (Manchester). 

Bulblet umbrella-sedge open sandy pond shore communities often occur as part of larger sandy pond shore systems.


Bulblet umbrella-sedge open sandy pond shore at Ossipee Lake (photo by Ben Kimball for the NH Natural Heritage Bureau)
Bulblet umbrella-sedge open sandy pond shore at Ossipee Lake (photo by Ben Kimball)

Bulblet umbrella-sedge open sandy pond shore (foreground) at Ossipee Lake (photo by Dan Sperduto for the NH Natural Heritage Bureau) 
Bulblet umbrella-sedge open sandy pond shore (foreground) at Ossipee Lake (photo by Dan Sperduto)


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