| Androsace nivalis |
Primulaceae |
snow douglasia |
eastern forest; subalpine or alpine; shrub-steppe |
Apr, May, Jun, Jul, Aug |
| Anthriscus caucalis * |
Apiaceae |
burr chervil |
disturbed areas |
Apr, May, Jun, Jul |
| Artemisia campestris var. scouleriana |
Asteraceae |
Pacific sagewort; Scouler's wormwood |
|
|
| Aspidotis densa |
Pteridaceae |
Oregon; Indian's dream; podfern |
western forest; eastern forest; subalpine or alpine |
[no flowers] |
| Camassia quamash ssp. maxima |
Asparagaceae |
dark camas |
|
Apr, May, Jun |
| Cardamine hirsuta * |
Brassicaceae |
hairy bittercress; shotweed |
western forest; eastern forest; prairie or bald; disturbed areas |
Mar, Apr, May, Jun |
| Cardamine oligosperma |
Brassicaceae |
few-seeded bittercress; little western bittercress |
western forest; eastern forest; prairie or bald; freshwater |
Mar, Apr, May, Jun, Jul, Aug, Sep |
| Carex nebrascensis |
Cyperaceae |
Nebraska sedge |
freshwater |
May, Jun, Jul |
| Ceanothus integerrimus |
Rhamnaceae |
deerbrush |
eastern forest |
May, Jun, Jul |
| Celtis reticulata |
Cannabaceae |
netleaf hackberry |
eastern forest; shrub-steppe; freshwater |
Apr, May |
| Clarkia purpurea ssp. quadrivulnera |
Onagraceae |
four-spot |
western forest; prairie or bald; shrub-steppe |
May, Jun, Jul |
| Collinsia rattanii |
Plantaginaceae |
Rattan collinsia |
western forest; eastern forest |
Apr, May, Jun |
| Croton setigerus |
Euphorbiaceae |
doveweed; turkey mullein; fish poison |
shrub-steppe; disturbed areas |
Jun, Jul, Aug |
| Cryptantha intermedia var. hendersonii |
Boraginaceae |
Henderson's common cryptantha |
|
|
| Elyleymus aristatus |
Poaceae |
|
|
|
| Epilobium campestre |
Onagraceae |
smooth willow-herb |
shrub-steppe; freshwater |
|
| Epilobium densiflorum |
Onagraceae |
dense-flower willow-herb |
western forest; eastern forest; shrub-steppe; freshwater |
Jul, Aug, Sep |
| Eschscholzia californica * |
Papaveraceae |
California poppy |
prairie or bald; disturbed areas |
May, Jun, Jul, Aug, Sep |
| Gilia capitata |
Polemoniaceae |
bluehead gilia; globe gilia |
western forest; eastern forest |
Jun, Jul |
| Hordeum marinum ssp. gussoneanum * |
Poaceae |
Mediterranean barley |
|
May, Jun |
| Lomatium cuspidatum |
Apiaceae |
Wenatchee biscuit-root; Wenatchee desert-parsley; Wenatchee Mountain lomatium |
eastern forest; subalpine or alpine |
May, Jun, Jul |
| Lomatium klickitatense |
Apiaceae |
Klickitat biscuit-root; Klickitat lomatium; Klickitat desert-parsley |
eastern forest; shrub-steppe |
Apr, May, Jun |
| Lomatium suksdorfii |
Apiaceae |
Suksdorf's biscuit-root; Suksdorf's desert-parsley |
shrub-steppe |
Apr, May |
| Lomatium tamanitchii |
Apiaceae |
ribseed biscuit-root; ribseed desert-parsley |
eastern forest; shrub-steppe |
Apr, May |
| Lupinus bicolor |
Fabaceae |
field lupine; small-flowered lupine; two-color lupine |
prairie or bald; shrub-steppe |
Apr, May, Jun, Jul |
| Myosotis stricta * |
Boraginaceae |
blue scorpion-grass |
prairie or bald; shrub-steppe; freshwater; disturbed areas |
|
| Nemophila pedunculata |
Hydrophyllaceae |
meadow baby-blue-eyes; spreading nemophila |
western forest; freshwater |
Apr, May, Jun |
| Oreocarya glomerata |
Boraginaceae |
cockscomb oreocarya |
eastern forest; shrub-steppe |
Apr, May, Jun, Jul |
| Penstemon barrettiae |
Plantaginaceae |
Barrett's beardtongue |
eastern forest; shrub-steppe |
Apr, May |
| Plectritis brachystemon |
Valerianaceae |
|
western forest; eastern forest; prairie or bald |
Apr, May, Jun |
| Plectritis ciliosa |
Valerianaceae |
|
eastern forest; shrub-steppe |
Apr, May |
| Poa leibergii |
Poaceae |
Leiberg's bluegrass |
eastern forest; shrub-steppe |
Mar, Apr, May |
| Polygonum polygaloides ssp. confertiflorum |
Polygonaceae |
close-flowered knotweed |
|
May, Jun, Jul |
| Polystichum lemmonii |
Dryopteridaceae |
Lemmon's holly fern; Shasta fern |
western forest; eastern forest |
[no flowers] |
| Potamogeton richardsonii |
Potamogetonaceae |
clasping-leaved pondweed; Richardson's pondweed |
freshwater |
Jun, Jul, Aug |
| Roemeria argemone * |
Papaveraceae |
long prickly-head poppy |
disturbed areas |
May, Jun, Jul |
| Rorippa curvipes |
Brassicaceae |
blunt-leaved yellowcress; truncate yellowcress |
freshwater |
May, Jun, Jul, Aug, Sep |
| Salix lasiandra var. lasiandra |
Salicaceae |
Pacific willow |
|
|
| Toxicodendron diversilobum |
Anacardiaceae |
Pacific poison-oak |
western forest; eastern forest; prairie or bald; shrub-steppe |
Apr, May, Jun, Jul |
| Trifolium willdenovii |
Fabaceae |
sand clover; tomcat clover |
western forest; prairie or bald |
Apr, May, Jun, Jul |