- Trees
- Shrubs
- Amelanchier alnifolia (Saskatoon)
- Arctostaphylos columbiana (hairy manzanita)
- Arctostaphylos uva-ursi (kinnikinnick)
- Holodiscus discolor (oceanspray)
- Juniperus communis (common juniper)
- Mahonia aquifolium (tall Oregon-grape)
- Mahonia nervosa (dull Oregon-grape)
- Oemleria cerasiformis (Indian-plum)
- Philadelphus lewisii (mock-orange)
- Ribes sanguineum (red-flowering currant)
- Rosa gymnocarpa (baldhip rose)
- Rosa nutkana (Nootka rose)
- Rosa pisocarpa (clustered wild rose)
- Shepherdia canadensis (soopolallie)
- Symphoricarpos albus (common snowberry)
- Forbs
- Allium cernuum (nodding onion)
- Brodiaea coronaria (harvest brodiaea)
- Camassia leichtlinii (great camas)
- Camassia quamash (common camas)
- Claytonia perfoliata (miner's lettuce)
- Collinsia parviflora (small-flowered blue-eyed Mary)
- Conioselinum gmelinii (pacific hemlock-parsley)
- Crocidium multicaule (gold star)
- Delphinium menziesii (Menzies’ larkspur)
- Dodecatheon hendersonii (broad-leaved shootingstar)
- Dodecatheon pulchellum ssp. (few-flowered shootingstar)
- Eriophyllum lanatum (woolly sunflower)
- Erythronium oregonum (white fawn lily)
- Erythronium revolutum (pink fawn lily)
- Fragaria chiloensis (coastal strawberry)
- Fragaria virginiana (wild strawberry)
- Fritillaria affinis var. affinis (chocolate lily)
- Lilium columbianum (tiger lily)
- Lomatium nudicaule (fern-leaved desert-parsley)
- Lomatium utriculatum (spring gold)
- Lupinus bicolor ssp. bicolor (two-coloured lupine)
- Maianthemum dilatatum (false lily-of-the-valley)
- Mimulus alsinoides (chickweed monkey-flower)
- Olsynium douglasii var. douglasii (satinflower)
- Perideridia gairdneri (Gairdner’s yampah)
- Piperia elegans (elegant rein orchid)
- Ranunculus occidentalis var. occidentalis (western buttercup)
- Sanicula crassicaulis (Pacific sanicle)
- Sedum lanceolatum (lance-leaved stonecrop)
- Sedum spathulifolium (broad-leaved stonecrop)
- Sisyrinchium idahoensis var. macounii (blue-eyed grass)
- Thysanocarpus curvipes (sand lacepod)
- Trifolium wormskioldii (springbank clover)
- Triodanis perfoliata var. perfoliata (Venus’s looking-glass)
- Viola adunca (early blue violet)
- Grasses & Sedges
- Achnatherum lemmonii (Lemmon's needlegrass)
- Bromus carinatus (California brome)
- Bromus sitchensis (Alaska brome)
- Bromus vulgaris (Columbia brome)
- Carex inops (long-stoloned sedge)
- Danthonia californica (California oatgrass)
- Danthonia intermedia (timber oatgrass)
- Danthonia spicata (poverty oatgrass)
- Deschampsia cespitosa (tufted hairgrass)
- Dichanthelium acuminatum (western witchgrass)
- Elymus glaucus (blue wildrye)
- Elymus hirsutus (hairy wildrye)
- Festuca idahoensis (Idaho fescue)
- Festuca idahoensis ssp. roemeri (Roemer's fescue)
- Festuca occidentalis (western fescue)
- Koeleria macrantha (Junegrass)
- Melica subulata (Alaska oniongrass)
- Poa secunda (Sandberg bluegrass)
- Trisetum canescens (tall trisetum)
- Ferns & Allies