| Scientific Name (* Introduced) |
Family | Common Name | Habitat | Bloom Period |
| Allium cernuum | Amaryllidaceae | nodding onion | western forest, eastern forest, prairie or bald, shrub-steppe | may, jun, jul |
| Aquilegia formosa | Ranunculaceae | red columbine, western columbine, Sitka columbine | western forest, eastern forest, subalpine or alpine | may, jun, jul, aug |
| Aspidotis densa | Pteridaceae | Indian's dream, Oregon cliff brake, podfern | western forest, eastern forest, subalpine or alpine | no flowers |
| Carex inops ssp. inops | Cyperaceae | Long stolon sedge | apr, may, jun, jul | |
| Carex macrocephala | Cyperaceae | largehead sedge, bighead sedge, bighead sedge | saltwater shores | jun, jul |
| Castilleja levisecta | Orobanchaceae | golden Indian paintbrush | prairie or bald | apr, may, jun, jul, aug, sep |
| Collinsia parviflora | Plantaginaceae | small-flowered blue-eyed mary, maiden blue eyed Mary | western forest, eastern forest, prairie or bald, shrub-steppe, subalpine or alpine | mar, apr, may, jun, jul |
| Comarum palustre | Rosaceae | purple marshlocks, marsh cinquefoil | subalpine or alpine, freshwater | jun, jul, aug |
| Cuscuta pacifica | Convolvulaceae | salt marsh dodder | saltwater shores | jun, jul, aug, sep, oct |
| Dodecatheon hendersonii | Primulaceae | broad-leaved shooting star, Henderson's shooting star, mosquito bills | western forest, prairie or bald | mar, apr, may, jun |
| Epilobium brachycarpum | Onagraceae | tall annual willowherb, autumn willowherb | western forest, eastern forest, prairie or bald | jul, aug |
| Epilobium minutum | Onagraceae | chaparral willowherb | western forest, eastern forest, prairie or bald | 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 |
| Glehnia leiocarpa | Apiaceae | |||
| Heuchera micrantha var. diversifolia | Saxifragaceae | Smallflower alumroot | may, jun, jul, aug | |
| Hippuris vulgaris | Plantaginaceae | common mare's-tail | freshwater | jun, jul, aug |
| Lomatium utriculatum | Apiaceae | common lomatium, spring gold | prairie or bald | apr, may, jun |
| Lupinus bicolor | Fabaceae | two-color lupine | prairie or bald, shrub-steppe | apr, may, jun, jul |
| Lupinus littoralis | Fabaceae | seashore lupine | saltwater shores | may |
| Maianthemum stellatum | Asparagaceae | starry false lily-of-the-valley, star-flowered solomon's-seal | western forest, eastern forest | may, jun, jul |
| Mentha canadensis | Lamiaceae | |||
| Menyanthes trifoliata | Menyanthaceae | buck-bean | freshwater | may, jun, jul, aug |
| Micranthes integrifolia | Saxifragaceae | wholeleaf saxifrage | western forest, eastern forest, prairie or bald, shrub-steppe, subalpine or alpine, freshwater | mar, apr, may, jun, jul |
| Monotropa hypopitys | Ericaceae | pinesap, many-flower indian-pipe | western forest, eastern forest | may, jun, jul |
| Persicaria amphibia | Polygonaceae | Water smartweed | freshwater | jun, jul, aug, sep, oct |
| Petrophytum hendersonii | Rosaceae | Olympic Mountain rockmat | subalpine or alpine | jul, aug, sep |
| Picea sitchensis | Pinaceae | Sitka spruce | western forest | may, no flowers |
| Plectritis congesta | Valerianaceae | sea blush, rosy plectritis | western forest, prairie or bald | apr, may, jun |
| Poa macrantha | Poaceae | seashore bluegrass, sand-dune bluegrass | saltwater shores | apr, may, jun, jul |
| Polygonum paronychia | Polygonaceae | beach knotweed, black knotweed | saltwater shores | may, jun, jul, aug, sep |
| Quercus garryana | Fagaceae | Oregon white oak, Garry oak | western forest, eastern forest, shrub-steppe | may |
| Ranunculus occidentalis | Ranunculaceae | western buttercup | western forest, eastern forest, prairie or bald | mar, apr, may, jun |
| Rupertia physodes | Fabaceae | forest scurfpea, California-tea | western forest, prairie or bald | may, jun |
| Salicornia depressa | Amaranthaceae | low saltwort | ||
| Sanicula bipinnatifida | Apiaceae | purple sanicle, purple black-snakeroot | western forest, prairie or bald | may, jun |
| Saxifraga cespitosa | Saxifragaceae | tufted alpine saxifrage | western forest, eastern forest, prairie or bald, subalpine or alpine | apr, may, jun, jul, aug, sep |
| Sedum spathulifolium | Crassulaceae | western forest, prairie or bald | apr, may, jun | |
| Shepherdia canadensis | Elaeagnaceae | russet buffaloberry, soopolallie, soapberry | western forest, eastern forest, prairie or bald, shrub-steppe | may, jun, jul |
| Silene latifolia * | Caryophyllaceae | bladder campion, white campion | western forest, eastern forest, disturbed areas | jun, jul, aug |
| Solidago simplex var. simplex | Asteraceae | Dune goldenrod | jun, jul, aug, sep | |
| Spiranthes romanzoffiana | Orchidaceae | hooded ladies'-tresses | prairie or bald, subalpine or alpine, freshwater, saltwater shores | jul, aug, sep |
| Toxicoscordion venenosum | Melanthiaceae | grassy death camas | eastern forest, prairie or bald, shrub-steppe | apr, may, jun |
| Trifolium oliganthum | Fabaceae | few-flowerered clover | prairie or bald | mar, apr, may, jun, jul |
| Trifolium willdenovii | Fabaceae | tomcat clover, springbank clover | western forest, prairie or bald | apr, may, jun, jul |
| Turritis glabra | Brassicaceae | tower rockcress, tower mustard | western forest, eastern forest, freshwater, disturbed areas | may, jun, jul |
| Vicia americana var. americana | Fabaceae | American vetch |
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.