Agrostis aequivalvis (Trin.) Trin.
[= Podagrostis aequivalvis]

Washington: Grays Harbor County: To the west side of Route 101, about 5.8 miles north of the bridge over the Humptulips River. Elev. 400 ft.
47° 17' 58.2" N, 123° 54' 33.4" W; UTM Zone 10, 431259E, 5238843N
Datum: WGS 84.
Growing in a small Sphagnum bog about 300-400 feet in diameter, in peat underlain by clayey soil (Nemah silty clay loam; fine, isotic, acid, isomesic Vertic Endoaquepts), possibly derived from an old, burned bog forest (burned tree trunks present.) Bog is slightly drier and more hummocky in the southern 2/3 and wetter and flatter in the northern 1/3. Growing with Anemone oregana var. felix, Blechnum spicant, Boykinia intermedia, Caltha leptosepala, Camassia quamash ssp. azurea, Carex echinata ssp. phyllomanica, C. livida, C. vesicaria, Cornus canadensis, Drosera rotundifolia, Erigeron peregrinus, Gaultheria shallon, Hypericum anagalloides, Juncus ensifolius, Kalmia microphylla ssp. occidentalis, Ledum groenlandicum, Lilium columbianum, Linnaea borealis ssp. longiflora, Lycopodium clavatum, Lysichiton americanum, Maianthemum dilatatum, Menziesia ferruginea, Picea sitchensis (rare), Pinus contorta (rare), P. monticola (rare), Pleurozium schreiberi, Pseudotsuga menziesii (rare), Pteridium aquilinum, Rhynchospora alba, Sanguisorba officinalis, Senecio triangularis ssp. angustifolius, Sphagnum mendocinum, S. pacificum, S. palustre, S. rubellum, Spiraea douglasii var. menziesii, Thuja plicata, Trientalis borealis, Tsuga heterophylla, Vaccinium ovalifolium and V. oxycoccos. Surrounded by a young, dense forest of Abies amabilis, Gaultheria shallon, Menziesia ferruginea, Polystichum munitum, Pseudotsuga menziesii, Taxus brevifolia, Thuja plicata and Tsuga heterophylla. Grass forming small clumps or solitary, occasional. Phenology: Fruits.

Doug Goldman 3520, Jul 8, 2005
WTU, Accession: 380221