Name:
Prunus emarginata - Holodiscus discolor Shrubland Alliance
Reference:
NatureServe Biotics 2019
Description:
This alliance consists of shrublands where <i>Prunus emarginata</i> or <i>Holodiscus discolor</i> characteristically are dominant or the important species in the canopy. Other shrubs may include <i>Achnatherum occidentale, Amelanchier alnifolia, Arctostaphylos patula, Artemisia tridentata, Ceanothus cordulatus, Ceanothus cuneatus, Ceanothus integerrimus, Ceanothus velutinus, Cercocarpus ledifolius, Chrysolepis sempervirens, Chrysothamnus viscidiflorus, Ericameria nauseosa, Eriogonum nudum, Garrya fremontii, Keckiella corymbosa, Mimulus suksdorfii, Prunus andersonii, Quercus sadleriana, Quercus vacciniifolia, Ribes</i> spp., <i>Symphoricarpos mollis</i>, and <i>Symphoricarpos rotundifolius</i>. Emergent conifers may be present. This is a widespread montane to subalpine shrubland alliance of California, occurring on ridges, montane slopes, rocky chutes, moraines, and talus. It is generally found between 700 and 2800 m elevation, but more common at higher elevations. Stands occur on concave or northerly facing slopes, or in rocky areas that accumulate more surface run-off than surrounding areas, or with rock outcrops and steep talus where shrubs establish in rock crevices and other openings between rocks. Soils are skeletal and may be rocky, loamy, or sandy. Unlike most chaparral types, this alliance can form self-perpetuating stands, which can be of continuous shrub cover or have an intermittent canopy.
Accession Code:
urn:lsid:vegbank.org:commConcept:39128-{C191588A-4D2F-496B-B2D1-F2AAC2910E97}
Plot-observations of this Community Concept:
0
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