Common (Translated Scientific) Name: Arroyo Willow - Red-osier Dogwood / Woods'' Rose Wet Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This association was sampled from 760 to 1770 m (2500-5800 feet) elevation, primarily in south-central and southeastern Oregon, although it has been seen farther north in the Columbia River Basin and the Blue Mountains. Valleys are V-, box- and trough-shaped, and very narrow to moderately wide with moderately high gradients and steep sideslopes. This association always occurs on streambanks, from small first order streams to moderately sized third order streams. Salix lasiolepis dominates the shrub overstory along with Cornus sericea. The shrub understory is populated with Rosa woodsii, Ribes aureum, and/or Salix prolixa. Clematis ligusticifolia is found on almost 70% of sites and is the dominant herbaceous species. Other occasional grasses and forbs include Elymus glaucus, Achillea millefolium, and Epilobium ciliatum. Most sites have a high percentage of bare ground, gravel or rock.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This type described from eastern Oregon is based on between 14 and 18 plots (14 have Salix lasiolepis and Cornus sericea codominant). Manning and Padgett (1995) described ~Salix lasiolepis / Barren Ground Wet Shrubland (CEGL001216)$$ that is quite similar, but which has no Cornus sericea, and likely represents drier, more intermittent streams. This later type is ranked G3, and probably includes 4 of the 18 plots known from Oregon. Jankovsky-Jones et al. (2001) also described a Salix lasiolepis / Barren association which is very like the one from Nevada and Oregon. One of these southwestern Idaho plots from Jankovsky-Jones et al. (2001) appears to have significant amounts of Cornus sericea, and almost certainly represents this new type.

Similar NVC Types: No Data Available

note: No Data Available