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Washington Natural Heritage Information System
Known High-Quality or Rare Plant Communities and Wetland Ecosystems of Washington
September 2014

Island County


Scientific Name
Common Name
Historic Record
Acer macrophyllum - Alnus rubra / Polystichum munitum - Tellima grandiflora Forest Bigleaf Maple - Red Alder / Swordfern - Fringecup Community
Alnus rubra / Polystichum munitum Forest Red Alder / Swordfern
Alnus rubra / Rubus spectabilis / Carex obnupta - Lysichiton americanus Woodland Red Alder / Salmonberry / Slough Sedge - Skunkcabbage
Carex macrocephala Herbaceous Vegetation Bighead Sedge
Coastal Spit with Native Vegetation PTN Coastal Spit with Native Vegetation PTN
Distichlis spicata - (Salicornia virginica) Herbaceous Vegetation Saltgrass - (Pickleweed)
Festuca roemeri - Cerastium arvense - Koeleria macrantha Herbaceous Vegetation Roemer's Fescue - Field Chickweed - Prairie Junegrass
Festuca rubra - (Camassia leichtlinii, Grindelia stricta var. stricta) Herbaceous Vegetation Red Fescue - Great Camas - Oregon Gumweed
Festuca rubra - Ambrosia chamissonis Herbaceous Vegetation Red Fescue - Silver Burweed
High Salinity Lagoon PTN Sand or Mixed Fine: Lagoon, Hyperhaline and Euhaline PTN
Hippuris vulgaris Herbaceous Vegetation Common Marestail
Juncus balticus Pacific Coast Herbaceous Vegetation Baltic Rush Pacific Coast
Ledum groenlandicum - Kalmia microphylla / Sphagnum spp. Shrubland Bog Labrador-tea - Bog-laurel / Sphagnum Spp.
Leymus mollis ssp. mollis - Lathyrus japonicus Herbaceous Vegetation American Dunegrass - Japanese Beachpea
Low Elevation Freshwater Wetland PTN Low Elevation Freshwater Wetland PTN
Low Elevation Sphagnum Bog PTN Low Elevation Sphagnum Bog PTN
Menyanthes trifoliata Herbaceous Vegetation Buckbean
Myrica gale / Boykinia intermedia - Carex obnupta Shrubland Sweetgale / Mountain Brookfoam - Slough Sedge
Nuphar lutea ssp. polysepala Herbaceous Vegetation Yellow Pond-lily
Pinus contorta var. contorta / Ledum groenlandicum / Sphagnum spp. Woodland Shore Pine / Bog Labrador-tea / Sphagnum Spp.
Pseudotsuga menziesii - Arbutus menziesii / Gaultheria shallon Forest Douglas-fir - Pacific Madrone / Salal
Pseudotsuga menziesii - Arbutus menziesii / Vicia americana Forest Douglas-fir - Pacific Madrone / American Purple Vetch
Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon Forest Douglas-fir - Western Hemlock / Salal
Pseudotsuga menziesii - Tsuga heterophylla / Holodiscus discolor / Polystichum munitum Forest Douglas-fir - Western Hemlock / Oceanspray / Swordfern
Pseudotsuga menziesii - Tsuga heterophylla / Mahonia nervosa Forest Douglas-fir - Western Hemlock / Dwarf Oregongrape
Pseudotsuga menziesii - Tsuga heterophylla / Polystichum munitum Forest Douglas-fir - Western Hemlock / Swordfern
Pseudotsuga menziesii - Tsuga heterophylla / Rhododendron macrophyllum - Vaccinium ovatum - Gaultheria shallon Forest Douglas-fir - Western Hemlock / Pacific Rhododendron - Evergreen Huckleberry
Pseudotsuga menziesii - Tsuga heterophylla / Vaccinium ovatum Forest Douglas-fir - Western Hemlock / Evergreen Huckleberry
Pseudotsuga menziesii / Gaultheria shallon - Holodiscus discolor Forest Douglas-fir / Salal - Oceanspray
Quercus garryana / Symphoricarpos albus / Carex inops Woodland Oregon White Oak / Common Snowberry / Long-stolon Sedge
Salicornia virginica - Distichlis spicata - Triglochin maritima - (Jaumea carnosa) Herbaceous Vegetation Pickleweed - Saltgrass - Seaside Arrowgrass - (Fleshy Jaumea)
Salicornia virginica Herbaceous Vegetation Pickleweed
Salix (hookeriana, lucida ssp. lasiandra, sitchensis) Shrubland [Provisional] Willow Spp.
Sandy, High Salinity, Low Marsh PTN Sand: Partly Enclosed, Eulittoral, Euhaline (Marsh) PTN
Sandy, Moderate Salinity, Low Marsh PTN Sand: Partly Enclosed, Eulittoral, Polyhaline (Marsh) PTN
Silty, Moderate Salinity, Low Marsh PTN Mixed Fine: Partly Enclosed Eulittoral, Polyhaline (Marsh) PTN
Spiraea douglasii Shrubland Douglas' Spirea
Transition Zone Wetland PTN Organic, Sand, Mixed-fine or Mud: Partly Enclosed, Backshore, Oligohaline (Marsh) PTN
Tsuga heterophylla - (Thuja plicata) / Ledum groenlandicum / Sphagnum spp. Woodland Western Hemlock - (Western Redcedar) / Bog Labrador-tea / Sphagnum Spp.
Typha latifolia Western Herbaceous Vegetation Broad-leaf Cattail


Washington Natural Heritage Program - www.dnr.wa.gov/ResearchScience/Topics/NaturalHeritage/Pages/amp_nh.aspx/
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Washington Dept. of Natural Resources, PO Box 47016, Olympia, WA 98504-7016