| Scientific Name (* Introduced) |
Family | Common Name | Habitat | Bloom Period |
| Agrostis scabra | Poaceae | rough bentgrass | ||
| Allium robinsonii | Amaryllidaceae | Robinson's onion | shrub-steppe | apr, may |
| Alopecurus aequalis var. aequalis | Poaceae | shortawn fescue | ||
| Antennaria microphylla | Asteraceae | little-leaf pussytoes, small-leaf pussytoes | western forest, eastern forest | may, jun, jul, aug |
| Arabis nuttallii | Brassicaceae | Nuttall's rockcress | may | |
| Arctostaphylos uva-ursi | Ericaceae | kinnikinnick, red bearberry | western forest, eastern forest, prairie or bald, subalpine or alpine | apr, may, jun |
| Astragalus succumbens | Fabaceae | Columbia milk-vetch, sprawling milk-vetch, crouching milk-vetch | eastern forest, shrub-steppe | apr, may, jun |
| Betula papyrifera | Betulaceae | paper birch | western forest, eastern forest, freshwater | mar, apr, may |
| Bidens cernua | Asteraceae | nodding beggarticks, bur marigold | freshwater | jul, aug, sep |
| Campanula rotundifolia | Campanulaceae | bluebell bellflower, bluebell-of-Scotland | western forest, eastern forest, prairie or bald, subalpine or alpine | jun, jul, aug, sep |
| Cardamine pensylvanica | Brassicaceae | Pennsylvania bittercress, quaker bittercress | western forest, eastern forest, freshwater | apr, may, jun, jul |
| Castilleja miniata | Orobanchaceae | scarlet Indian paintbrush | western forest, eastern forest, subalpine or alpine, saltwater shores | may, jun, jul, aug, sep |
| Castilleja tenuis | Orobanchaceae | hairy Indian paintbrush, thin paintbrush | western forest, eastern forest, freshwater | may, jun, jul, aug |
| Cirsium undulatum | Asteraceae | wavy-leaf thistle | eastern forest, shrub-steppe, disturbed areas | may, jun, jul, aug, sep, oct |
| Danthonia unispicata | Poaceae | onespike danthonia, few-flower wild oat-grass | shrub-steppe, subalpine or alpine | jun, jul |
| Delphinium burkei | Ranunculaceae | |||
| Drymocallis arguta | Rosaceae | |||
| Elodea canadensis | Hydrocharitaceae | Canadian waterweed, Rocky Mountain or common waterweed | freshwater | jul, aug, sep |
| Elymus glaucus ssp. glaucus | Poaceae | blue wildrye | jun, jul, aug | |
| Epilobium densiflorum | Onagraceae | dense-flower willowherb | western forest, eastern forest, shrub-steppe, freshwater | jul, aug, sep |
| Erysimum occidentale | Brassicaceae | pale wallflower, western wallflower | shrub-steppe | mar, apr, may |
| Erythranthe moschata | Phrymaceae | sticky monkey-flower, musk-flower | western forest, eastern forest, subalpine or alpine, freshwater | may, jun, jul, aug |
| Geum macrophyllum | Rosaceae | largeleaf avens, bigleaf avens | western forest, eastern forest, subalpine or alpine | apr, may, jun, jul, aug |
| Hornungia procumbens | Brassicaceae | prostrate hutchinsia, ovalpurse | prairie or bald, shrub-steppe, freshwater | mar, apr, may, jun |
| Idahoa scapigera | Brassicaceae | oldstem idahoa, scalepod, flatpod | shrub-steppe | mar, apr, may |
| Micranthes integrifolia | Saxifragaceae | wholeleaf saxifrage | western forest, eastern forest, prairie or bald, shrub-steppe, subalpine or alpine, freshwater | mar, apr, may, jun, jul |
| Myosotis stricta * | Boraginaceae | strict forget-me-not, blue scorpiongrass | shrub-steppe, freshwater, disturbed areas | apr, may, jun |
| Panicum capillare ssp. capillare | Poaceae | witchgrass, or common panicgrass | ||
| Penstemon fruticosus var. scouleri | Plantaginaceae | Shrubby or bush penstemon | may, jun, jul, aug | |
| Physocarpus malvaceus | Rosaceae | mallow ninebark | eastern forest, shrub-steppe | jun, jul |
| Plagiobothrys scouleri | Boraginaceae | Scouler's popcorn flower | western forest, eastern forest, prairie or bald, freshwater | may, jun, jul, aug |
| Plagiobothrys tenellus | Boraginaceae | Pacific popcorn flower, slender popcorn flower | shrub-steppe | apr, may, jun |
| Potamogeton richardsonii | Potamogetonaceae | Richardson's pondweed, clasping-leaved pondweed | freshwater | jun, jul, aug |
| Ranunculus macounii | Ranunculaceae | Macoun's buttercup | eastern forest, freshwater | may, jun, jul |
| Salix amygdaloides | Salicaceae | peach-leaf willow | freshwater | mar, apr, may |
| Scutellaria galericulata | Lamiaceae | marsh skullcap, Hooded skullcap | western forest, eastern forest, shrub-steppe, freshwater | jun, jul, aug |
| Symphoricarpos albus | Caprifoliaceae | common snowberry | western forest, eastern forest, prairie or bald | may, jun, jul, aug |
| Townsendia florifer | Asteraceae | showy townsendia, showy Townsend-daisy | shrub-steppe | may, jun, jul |
| Utricularia vulgaris | Lentibulariaceae | common or greater bladderwort | ||
| Veronica peregrina var. xalapensis | Plantaginaceae | purslane speedwell | western forest, eastern forest, freshwater | apr, may, jun, jul |
| Viola glabella | Violaceae | pioneer violet | western forest, eastern forest, freshwater | mar, apr, may, jun, jul |
Data from Consortium of PNW Herbaria and Burke Herbarium Image Collection. Generated on January 24, 2022
More information on the PlantQuest Image Project can be found at https://biology.burke.washington.edu/herbarium/imagecollection/plantquest.php.