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Acer saccharinum / Onoclea sensibilis - Boehmeria cylindrica Floodplain Forest | NatureServe Biotics 2019
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Name: Acer saccharinum / Onoclea sensibilis - Boehmeria cylindrica Floodplain Forest
Reference: NatureServe Biotics 2019
Description: These silver maple floodplain forests of the northeastern United States are typical of riverbottoms, lakeplains, and the inner floodplain of medium to large rivers, mostly at less than 245 m (800 feet) elevation. They are most typical of third- and fourth-order rivers. They are subjected to spring flooding of high frequency and duration; their soils are poorly drained and deep. They are generally associated with calcareous or sedimentary bedrock and with fine-grained surficial deposits but may occur in coarser soils or tills. The canopy ranges from closed to somewhat open (in small inclusions, it may be quite sparse) and is high and arching. Shrubs are few; the herb layer is very well-developed. Bryoids are minor. The overall effect is of tall, well-spaced trees over a lush carpet of herbs. The canopy is strongly dominated by <i>Acer saccharinum</i>. Associated trees include <i>Fraxinus pennsylvanica, Ulmus americana</i>, and occasionally <i>Quercus bicolor</i> or <i>Quercus macrocarpa</i>. <i>Prunus serotina, Picea glauca</i>, and <i>Acer rubrum</i> have been occasionally noted northward. The herb layer is seasonally variable, with spring ephemerals succeeded by dense cover of mixed ferns, forbs and graminoids. Summer-dominant herbs include <i>Onoclea sensibilis</i> and <i>Boehmeria cylindrica</i>. This type differs from <i>~Acer saccharinum - (Populus deltoides) / Matteuccia struthiopteris - Laportea canadensis</i> Floodplain Forest (CEGL006147)$$ in its somewhat more poorly drained soils, longer flood duration, and the reduced importance of <i>Matteuccia struthiopteris</i> relative to <i>Onoclea sensibilis</i> along with generally higher herb layer richness. It generally lacks <i>Populus deltoides</i> and <i>Salix nigra</i> in the canopy. It may be bordered on its upland edge by terrace forests dominated by <i>Acer saccharum</i>. 
Accession Code: urn:lsid:vegbank.org:commConcept:34824-{6BA78896-F225-4B1A-842A-D745EDCDC820}
Plot-observations of this Community Concept: 18
      Party Perspective according to: NatureServe (organization)
Perspective from: 08-Dec-2005 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.687000 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL006176
  Translated: Silver Maple / Sensitive Fern - Small-spike False Nettle Floodplain Forest
  Common: Silver Maple Floodplain Bottom Forest (Sensitive Fern Type)
  Scientific: Acer saccharinum / Onoclea sensibilis - Boehmeria cylindrica Floodplain Forest
(convergence) and Synonyms:
(similar) CEGL006176
(similar) Acer saccharinum / Onoclea sensibilis - Boehmeria cylindrica Forest
(similar) Acer saccharinum / Onoclea sensibilis - Boehmeria cylindrica Forest