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Redwood stands from the countywide vegetation map. From the fine scale mapping key, redwood stands are defined as: Sequoia sempervirens has >20% relative conifer cover (30% conifer cover that is 24% DF and 5% RW would key to this class). Associated trees often include Acer macrophyllum, Notholithocarpus densiflorus, Pseudotsuga menziesii, Torreya californica, and Umbellularia californica, which are typically sub to co-dominant but may occasionally exceed Sequoia in cover. Vaccinium ovatum, Oxalis oregana, and Woodwardia fimbriata may intermix in the understory. |
Douglas-fir stands from the countywide vegetation map. From the fine scale mapping key, Douglas-fir stands are defined as:Conifers comprise > 30% relative cover in the canopy. Pseudotsuga menziesii is dominant or is co-dominant with Arbutus menziesii, Quercus agrifolia, Q. chrysolepis, Umbellularia californica, or Notholithocarpus densiflorus. When P. menziesii co-dominates with hardwoods, key to P. menziesii, except when with Quercus garryana or Q. kelloggii (see Q. garryana (step 4a4) or Q. kelloggii Alliance (step 5c4).
Bishop pine stands from the countywide vegetation map. From the fine scale mapping key, Bishop pine stands are defined as:Pinus muricata is dominant or may co-dominate in the conifer tree canopy. The understory may include moderate to dense cover of shrubs such as Arctostaphylos, Gaultheria shallon, and Vaccinium ovatum.
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Sargent cypress stands from the countywide vegetation map. From the fine scale mapping key, Sargent cypress stands are defined as:Hesperocyparis sargentii dominates on slopes, ridges, or along stream benches and terraces of serpentine, volcanic, or other ultramafic substrates. Adenostoma fasciculatum, Arctostaphylos spp., Ceanothus jepsonii, and Quercus durata are commonly found in stands. In the vegetation map, these stands will be labelled with a Hesperocyparis sargentii alliance, even though they have a shrub life form. |