Name:
Sequoia sempervirens Forest Alliance
Reference:
Western Ecology Working Group of...
Description:
This alliance includes both upland sites and alluvial, streamside stands. Stands are found on all aspects and slopes as well as raised stream terraces and benches. Stands usually occur on soils derived from sandstone or schist. Stands are found between 10 and 600 m, and grow in areas which are inundated during the summers with coastal fog. Winters are quite wet, with precipitation averaging more than 150 cm/year. Nearly all the rain falls between November and May, though fog drip continues to provide moisture through the otherwise dry summer months. Stands of this alliance are characterized by Sequoia sempervirens, which is an important or dominant species in the canopy. Other trees present may include Acer macrophyllum, Arbutus menziesii, Umbellularia californica, Pseudotsuga menziesii, Abies grandis, Lithocarpus densiflorus, and Tsuga heterophylla. On deeper, moister soils, redwood is the only canopy tree; on steeper slopes with shallower soils, redwood shares the canopy with other trees. Shrubs and forbs may be infrequent or common, and can include Vaccinium ovatum, Pteridium aquilinum, Polypodium californicum, Woodwardia fimbriata, Vicia sativa ssp. nigra, Blechnum spicant, Iris douglasiana, Mahonia nervosa, Marah fabaceus, Oxalis oregana, Carex globosa, Gaultheria shallon, Polystichum munitum, and Trillium ovatum.
Accession Code:
VB.CC.23985.SEQUOIASEMPERVI
Plot-observations of this Community Concept:
0
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