| Abronia mellifera |
Nyctaginaceae |
honey-scented sandverbena; white sand verbena |
shrub-steppe |
May, Jun, Jul, Aug, Sep, Oct |
| Alnus rhombifolia |
Betulaceae |
white alder |
eastern forest; shrub-steppe; freshwater |
Mar, Apr, Nov-Feb |
| Alyssum alyssoides * |
Brassicaceae |
small alyssum; pale madwort |
eastern forest; shrub-steppe; disturbed areas |
Apr, May, Jun, Jul |
| Anthemis cotula * |
Asteraceae |
mayweed chamomile; stinking chamomile; dogfennel |
disturbed areas |
May, Jun, Jul, Aug, Sep, Oct |
| Apocynum cannabinum |
Apocynaceae |
clasping-leaved dogbane; common dogbane; hemp dogbane |
eastern forest; shrub-steppe; freshwater; disturbed areas |
Jun, Jul, Aug, Sep |
| Arnica fulgens |
Asteraceae |
hillside arnica; orange arnica; shining leopardbane |
eastern forest; shrub-steppe |
May, Jun, Jul |
| Astragalus inflexus |
Fabaceae |
bent milk-vetch; hairy milk-vetch |
eastern forest; shrub-steppe |
Apr, May, Jun, Jul |
| Beckmannia syzigachne |
Poaceae |
American sloughgrass |
freshwater |
Jun, Jul |
| Clematis hirsutissima |
Ranunculaceae |
Douglas's clematis; leatherflower; sugarbowls; vaseflower |
eastern forest; shrub-steppe |
May, Jun |
| Descurainia pinnata |
Brassicaceae |
western tansymustard |
eastern forest; prairie or bald; shrub-steppe |
Apr, May, Jun, Jul |
| Downingia elegans |
Campanulaceae |
common downingia |
freshwater |
Jun, Jul, Aug |
| Echinochloa crus-galli * |
Poaceae |
barnyard grass; large barnyard grass |
freshwater; disturbed areas |
Jun, Jul, Aug, Sep, Oct |
| Elaeagnus angustifolia * |
Elaeagnaceae |
Russian-olive |
eastern forest; shrub-steppe; freshwater |
May, Jun, Jul |
| Eleocharis macrostachya |
Cyperaceae |
creeping spikerush |
freshwater |
Jun, Jul, Aug, Sep |
| Erythronium grandiflorum var. grandiflorum |
Liliaceae |
yellow fawn-lily; glacier-lily |
|
Mar, Apr, May, Jun, Jul, Aug |
| Glycyrrhiza lepidota |
Fabaceae |
American licorice; wild licorice |
freshwater; disturbed areas |
May, Jun, Jul, Aug |
| Grayia spinosa |
Amaranthaceae |
spiny hopsage |
shrub-steppe |
Apr, May, Jun |
| Hypericum scouleri |
Hypericaceae |
Norton's St. John's wort; Scouler's St. John's wort; western St. John's wort |
western forest; eastern forest; freshwater |
Jun, Jul, Aug, Sep |
| Ladeania lanceolata |
Fabaceae |
wild lemonweed; lance-leaf scurfpea; lemon scurf-pea |
shrub-steppe |
Apr, May, Jun, Sep, Oct |
| Lathyrus lanszwertii var. bijugatus |
Fabaceae |
drypark pea |
|
|
| Leymus racemosus * |
Poaceae |
mammoth lyme grass; mammoth wildrye |
shrub-steppe; disturbed areas |
Jun, Jul, Aug |
| Linanthus pungens |
Polemoniaceae |
prickly phlox |
eastern forest; shrub-steppe |
May, Jun, Jul |
| Lomatium dissectum |
Apiaceae |
fern-leaved biscuit-root; sessile-fruited fern-leaved biscuit-root; fern-leaved desert parsley; fern-leaved lomatium |
eastern forest; prairie or bald; shrub-steppe |
Apr, May, Jun |
| Lomatium grayi |
Apiaceae |
Gray; milfoil lomatium |
eastern forest; shrub-steppe |
Apr, May |
| Lythrum salicaria * |
Lythraceae |
purple loosestrife; long purples |
freshwater |
Jul, Aug, Sep |
| Malva neglecta * |
Malvaceae |
dwarf mallow |
disturbed areas |
May, Jun, Jul, Aug, Sep |
| Nepeta cataria * |
Lamiaceae |
catnip |
freshwater; disturbed areas |
Jun, Jul, Aug, Sep |
| Persicaria maculosa * |
Polygonaceae |
heartweed; lady's-thumb; spotted lady's-thumb; redshank |
freshwater; disturbed areas |
Mar, Apr, May, Jun, Jul, Aug |
| Rosa nutkana ssp. macdougalii |
Rosaceae |
bristly Nootka rose; Nootka rose |
|
|
| Salix scouleriana |
Salicaceae |
Scouler's willow |
western forest; eastern forest; shrub-steppe; freshwater |
Mar, Apr, May, Jun |
| Scutellaria angustifolia |
Lamiaceae |
narrow-leaved skullcap |
eastern forest; shrub-steppe |
May, Jun, Jul |
| Senecio vulgaris * |
Asteraceae |
common groundsel; old man in the spring |
disturbed areas |
Mar, Apr, May, Jun, Jul, Aug, Sep, Nov-Feb |
| Solidago lepida var. salebrosa |
Asteraceae |
Canada goldenrod; meadow goldenrod; Rocky Mountains Canada goldenrod |
western forest; eastern forest; prairie or bald; shrub-steppe; freshwater; disturbed areas |
Jul, Aug, Sep |
| Stachys pilosa var. pilosa |
Lamiaceae |
marsh betony; swamp hedge-nettle |
|
Jun, Jul, Aug |
| Stellaria media * |
Caryophyllaceae |
common chickweed |
prairie or bald; disturbed areas |
Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov-Feb |
| Thelypodium milleflorum |
Brassicaceae |
many flowered thelypody |
eastern forest; shrub-steppe |
Apr, May, Jun, Jul |
| Trillium petiolatum |
Melanthiaceae |
purple trillium; purple wake-robin |
eastern forest; freshwater |
Apr, May, Jun |
| Typha latifolia |
Typhaceae |
broad-leaf cat-tail; common cattail |
freshwater |
May, Jun, Jul, Aug, Sep |
| Vicia americana var. americana |
Fabaceae |
American vetch |
|
|
| Viola nephrophylla |
Violaceae |
LeConte violet; northern bog violet |
freshwater |
May, Jun, Jul |