Common (Translated Scientific) Name: Douglas-fir - Grand Fir / Oceanspray / Alaska Oniongrass Forest

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This association is currently described from San Juan Island National Historical Park, Washington. Additional global information will be added when available. This association is limited to dry climatic areas and occurs on dry sites which appear to be poor to medium in nutrients. It is most commonly found on upper, gentle to moderate slopes. Parent materials are glacial till or residuum. Soils are likely to be somewhat shallow. Pseudotsuga menziesii dominates the upper canopy. Abies grandis is always present and often dominates tree regeneration. Pseudotsuga menziesii can also be numerous. The shrub layer is usually sparse to moderate in density. Rosa gymnocarpa and Lonicera hispidula are always present and Holodiscus discolor, Rubus ursinus, and Symphoricarpos albus are common. Festuca occidentalis and Melica subulata are usually prominent to codominant. Festuca occidentalis is always present. Trientalis borealis ssp. latifolia (occasionally prominent), Bromus vulgaris, Galium aparine, Galium triflorum, Osmorhiza berteroi, Pteridium aquilinum var. pubescens (occasionally prominent), Polystichum munitum, and Goodyera oblongifolia are usually present. Fire is the primary natural disturbance. Abies grandis is expected to increase over time in the absence of disturbance. Evidence suggests that many of these stands were Pseudotsuga menziesii savannas prior to fire suppression and have increased dramatically in tree density since pre-settlement.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: No Data Available

Similar NVC Types: No Data Available

note: No Data Available