| Scientific Name (* Introduced) |
Family | Common Name | Habitat | Bloom Period |
| Alliaria petiolata * | Brassicaceae | garlic mustard | disturbed areas | apr, may, jun |
| Anisocarpus madioides | Asteraceae | tarweed | western forest, prairie or bald | may, jun, jul |
| Aphanes occidentalis | Rosaceae | |||
| Brodiaea coronaria | Asparagaceae | harvest brodiaea, bluedick brodiaea | eastern forest, prairie or bald | may, jun |
| Calypso bulbosa | Orchidaceae | fairy slipper | western forest, eastern forest | mar, apr, may, jun |
| Camassia quamash ssp. maxima | Asparagaceae | Common camas | apr, may, jun | |
| Campanula scouleri | Campanulaceae | pale bellflower | western forest, eastern forest, subalpine or alpine | jun, jul, aug |
| Castilleja attenuata | Orobanchaceae | attenuate Indian paintbrush, valley-tassels | western forest, prairie or bald | apr, may, jun |
| Chaerophyllum temulum * | Apiaceae | western forest, disturbed areas | apr, may, jun | |
| Claytonia rubra | Montiaceae | redstem springbeauty | western forest, eastern forest, saltwater shores | apr |
| Delphinium menziesii | Ranunculaceae | Menzies' larkspur | eastern forest, prairie or bald, shrub-steppe | apr, may, jun, jul |
| Drosera anglica | Droseraceae | English sundew, giant sundew | freshwater | jun, jul, aug |
| Eriophorum angustifolium ssp. angustifolium | Cyperaceae | many-spiked cottongrass | ||
| Eriophorum virginicum * | Cyperaceae | tawny cottongrass | freshwater | jul, aug |
| Erythranthe alsinoides | Phrymaceae | wing-stem monkey-flower, chickweed monkey-flower | western forest, eastern forest, prairie or bald, freshwater | apr, may, jun |
| Erythranthe microphylla | Phrymaceae | shrub-steppe, freshwater | apr, may, jun, jul | |
| Fallopia sachalinensis * | Polygonaceae | |||
| Geranium lucidum * | Geraniaceae | shining crane's-bill | western forest, disturbed areas | apr, may, jun |
| Geranium pusillum * | Geraniaceae | small geranium, small-flower crane's-bill | disturbed areas | may, jun, jul, aug |
| Hyacinthoides massartiana * | Asparagaceae | |||
| Juglans ailantifolia * | Juglandaceae | Japanese walnut | ||
| Lathyrus polyphyllus | Fabaceae | leafy pea | western forest, prairie or bald | may, jun, jul |
| Lomatium utriculatum | Apiaceae | common lomatium, spring gold | prairie or bald | apr, may, jun |
| Montia howellii | Montiaceae | Howell's miner's-lettuce, Howell's montia | western forest | apr, may |
| Montia linearis | Montiaceae | narrowleaf miner's-lettuce, narrow-leaved montia | western forest, eastern forest, prairie or bald, shrub-steppe | apr, may, jun |
| Myriophyllum spicatum * | Haloragaceae | spike water-milfoil, Eurasian water-milfoil | freshwater | apr, may, jun, jul, aug, sep, oct |
| Najas flexilis | Hydrocharitaceae | nodding water-nymph, slender or wavy water nymph, or slender naias | freshwater | apr, may, jun, jul, aug |
| Petasites japonicus * | Asteraceae | Japanese sweet coltsfoot | western forest, freshwater, disturbed areas | |
| Polygonum spergulariiforme | Polygonaceae | spurry or fall knotweed | prairie or bald | jun, jul, aug, sep |
| Polypogon monspeliensis * | Poaceae | annual rabbit's-foot grass | disturbed areas | may, jun, jul, aug |
| Potamogeton amplifolius | Potamogetonaceae | large-leaved pondweed, broad-leaved pondweed | freshwater | jun, jul, aug |
| Potamogeton foliosus | Potamogetonaceae | leafy pondweed, fibrous-stipuled pondweed | freshwater | |
| Potamogeton pusillus | Potamogetonaceae | small pondweed | freshwater | jul, aug |
| Potamogeton richardsonii | Potamogetonaceae | Richardson's pondweed, clasping-leaved pondweed | freshwater | jun, jul, aug |
| Sabulina macra | Caryophyllaceae | |||
| Sanicula bipinnatifida | Apiaceae | purple sanicle, purple black-snakeroot | western forest, prairie or bald | may, jun |
| Sanicula crassicaulis var. crassicaulis | Apiaceae | Pacific sanicle | may, jun | |
| Sarracenia flava * | Sarraceniaceae | yellow pitcherplant | freshwater | |
| Sedum spathulifolium | Crassulaceae | western forest, prairie or bald | apr, may, jun | |
| Sedum thartii * | Crassulaceae | |||
| Senecio viscosus * | Asteraceae | |||
| Shepherdia canadensis | Elaeagnaceae | russet buffaloberry, soopolallie, soapberry | western forest, eastern forest, prairie or bald, shrub-steppe | may, jun, jul |
| Silene gallica * | Caryophyllaceae | common catchfly, windmill-pink | prairie or bald, disturbed areas | may, jun, jul |
| Sparganium eurycarpum | Typhaceae | broad-fruited bur-reed | freshwater | may, jun, jul, aug, sep, oct |
| Spirodela polyrhiza | Araceae | |||
| Toxicoscordion venenosum var. venenosum | Melanthiaceae | meadow death camas, common death camas | eastern forest, prairie or bald, shrub-steppe, subalpine or alpine | may, jun, jul |
| Trifolium microdon | Fabaceae | thimble clover, valparaiso clover | western forest, prairie or bald | apr, may, jun |
| Trifolium oliganthum | Fabaceae | few-flowerered clover | prairie or bald | mar, apr, may, jun, jul |
| Trifolium variegatum | Fabaceae | white-tip clover | western forest, eastern forest, prairie or bald, shrub-steppe, freshwater | 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.