| Scientific Name (* Introduced) |
Family | Common Name | Habitat | Bloom Period |
| Anemone oregana var. felix | Ranunculaceae | Oregon anemone | mar, apr, may, jun | |
| Aquilegia formosa | Ranunculaceae | red columbine, western columbine, Sitka columbine | western forest, eastern forest, subalpine or alpine | may, jun, jul, aug |
| Asplenium trichomanes | Aspleniaceae | maidenhair spleenwort | western forest, eastern forest, subalpine or alpine | no flowers |
| Boykinia intermedia | Saxifragaceae | western forest | jun, jul, aug | |
| Brewerimitella ovalis | Saxifragaceae | |||
| Caltha palustris | Ranunculaceae | yellow marsh marigold, yellow marsh marigold | freshwater | apr, may, jun, jul |
| Camassia quamash ssp. azurea | Asparagaceae | Common camas | apr, may, jun | |
| Campanula rotundifolia | Campanulaceae | bluebell bellflower, bluebell-of-Scotland | western forest, eastern forest, prairie or bald, subalpine or alpine | jun, jul, aug, sep |
| Claytonia parviflora | Montiaceae | streambank springbeauty | western forest, eastern forest, prairie or bald, shrub-steppe | mar, apr, may, jun |
| Clintonia uniflora | Liliaceae | queen's cup, bride's-bonnet | western forest, eastern forest | may, jun, jul |
| Cotoneaster franchetii * | Rosaceae | franchet's cotoneaster, orange cotoneaster | western forest, prairie or bald | may, jun |
| Crassula aquatica | Crassulaceae | water pygmyweed | freshwater | apr, may, jun, jul, aug |
| Eleocharis acicularis | Cyperaceae | needle spikerush | freshwater, disturbed areas | jun, jul, aug, sep |
| Erigeron peregrinus var. thompsonii | Asteraceae | |||
| Erigeron philadelphicus | Asteraceae | Philadelphia fleabane, Philadelphia daisy | western forest, eastern forest, freshwater, disturbed areas | apr, may, jun, jul, aug |
| Eriophyllum lanatum | Asteraceae | common woolly sunflower, yarrow leaved eriophyllum | eastern forest, prairie or bald, shrub-steppe, subalpine or alpine | may, jun, jul, aug |
| Erythronium montanum | Liliaceae | white avalanche-lily | western forest, eastern forest, subalpine or alpine | jun, jul, aug |
| Fritillaria affinis | Liliaceae | checker lily, chocolate lily | western forest, eastern forest | apr, may, jun |
| Hosackia rosea | Fabaceae | |||
| Hypericum tetrapterum * | Hypericaceae | square-stalked St. John's Wort | ||
| Ligusticum apiifolium | Apiaceae | celery-leaf licorice-root, celery-leaf wild lovage | western forest | may, jun, jul |
| Limosella aquatica | Scrophulariaceae | water mudwort, awl-leaf mudwort | shrub-steppe, freshwater | jun, jul, aug, sep, oct |
| Lysimachia latifolia | Primulaceae | |||
| Micranthes rufidula | Saxifragaceae | western forest, eastern forest, subalpine or alpine | may, jun, jul, aug | |
| Murdannia keisak * | Commelinaceae | wart-removing-herb | freshwater | sep, oct |
| Myriophyllum ussuriense | Haloragaceae | Ussurian water milfoil | freshwater | jun, jul, aug |
| Neottia banksiana | Orchidaceae | |||
| Nephrophyllidium crista-galli | Menyanthaceae | |||
| Potamogeton richardsonii | Potamogetonaceae | Richardson's pondweed, clasping-leaved pondweed | freshwater | jun, jul, aug |
| Prosartes hookeri | Liliaceae | Hooker fairy-bell | western forest, eastern forest | apr, may, jun, jul |
| Rhynchospora alba | Cyperaceae | white beaksedge, white beakrush | freshwater | jul, aug |
| Rosa pisocarpa | Rosaceae | clustered rose | western forest, freshwater | may, jun, jul |
| Rubus leucodermis | Rosaceae | whitebark raspberry, blackcap | western forest, eastern forest, disturbed areas | apr, may, jun, jul |
| Salix sitchensis | Salicaceae | Sitka willow | western forest, freshwater | may, jun |
| Samolus parviflorus | Primulaceae | water pimpernel | freshwater | may, jun, sep, oct |
| Saxifraga mertensiana | Saxifragaceae | wood saxifrage, woodland saxifrage, Merten's saxifrage | western forest, eastern forest, freshwater | apr, may, jun, jul, aug |
| Schoenoplectus kuekenthalianus | Cyperaceae | freshwater | jun, jul, aug | |
| Schoenoplectus triqueter * | Cyperaceae | streambank bulrush | freshwater | jul, aug |
| Triglochin scilloides | Juncaginaceae | flowering quillwort | ||
| Veronica schizantha | Plantaginaceae | |||
| Viola adunca | Violaceae | hookedspur violet, early blue violet | western forest, eastern forest, shrub-steppe, subalpine or alpine, freshwater | apr, may, jun, jul, aug |
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.