Name:
Prunus pumila var. depressa / Deschampsia caespitosa - Allium schoenoprasum Herbaceous Vegetation
Reference:
Eastern Ecology Working Group of...
Description:
This association is characteristic of broad, exposed cobble beaches on near-boreal northeastern rivers. The vegetation is patchy and dominated by a mixture of grasses and forbs, with some low shrubs mixed in. Trees are absent, and shrubs are kept to a low height by the ice-scour usually associated with spring snowmelt along these rivers. Total vegetation cover is about 60-90% but is locally variable. The dominant and characteristic grass is Deschampsia caespitosa; associated grasses include Spartina pectinata, Agrostis scabra, and Phalaris arundinacea. Forb richness may be relatively high and include species more-or-less restricted (in the east) to these rivershore habitats such as Astragalus alpinus var. brunetianus, Prenanthes racemosa, Tanacetum bipinnatum ssp. huronense, Gentianella amarella, Hedysarum alpinum, Symphyotrichum anticostense, and Oxytropis campestris var. johannensis. More common associates include Desmodium canadense, Solidago juncea, Campanula rotundifolia, Apocynum cannabinum, Symphyotrichum novi-belgii (= Aster novi-belgii), Iris versicolor, and Argentina anserina, along with the exotic Silene vulgaris (= Silene cucubalus). Associated shrubs, aside from the diagnostic and locally extensive Prunus pumila var. depressa, include Toxicodendron rydbergii, Cornus sericea, Spiraea alba, Rosa blanda, and Salix spp. This association is distinguished by its river-channel setting, cobble substrate, and prominence of Prunus pumila var. depressa and Deschampsia caespitosa.
Accession Code:
VB.CC.27920.PRUNUSPUMILAVAR
Plot-observations of this Community Concept:
0
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