Comm #62
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Liriodendron tulipifera - Fraxinus americana - (Aesculus flava) / Actaea racemosa - Laportea canadensis Forest
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accession code: urn:lsid:vegbank.org:commConcept:35899-{6BE1A2C8-C933-4701-86A5-42FB046256D0}
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NatureServe Biotics 2019 |
250
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This association represents deciduous forests of concave lower slopes and flats at middle elevations (610-1370 m [2000-4500 feet]) in the Southern Blue Ridge and at low to middle elevations (200-915 m [650-3000 feet]) in the Northern Blue Ridge and adjacent Ridge and Valley. The canopy is dominated by some mixture of rich-site mesophytic species such as <i>Fraxinus americana, Tilia americana var. heterophylla, Aesculus flava</i>, and <i>Magnolia acuminata</i>, occurring with more widely tolerant tree species such as <i>Liriodendron tulipifera, Acer rubrum, Tsuga canadensis</i>, and <i>Betula lenta</i>. In stands that have been impacted by the last cycle of industrial logging (70-80 years BP), <i>Liriodendron tulipifera</i> may dominate. The herbaceous stratum is diverse and often very lush. Typical herbaceous species include <i>Actaea racemosa, Caulophyllum thalictroides, Prosartes lanuginosa, Aruncus dioicus, Adiantum pedatum, Collinsonia canadensis, Osmorhiza claytonii</i>, and <i>Laportea canadensis</i>. This association is distinguished by the absence or scarcity of calciphilic species, such as <i>Diplazium pycnocarpon, Asplenium rhizophyllum, Dryopteris goldieana, Aquilegia canadensis, Solidago flexicaulis, Deparia acrostichoides</i>, and <i>Cystopteris protrusa</i>, by generally occurring at elevations above 610 m (2000 feet) (200 m at the northern end of the range), and by lacking species typical of lower elevation forests. |
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