Wildflowers

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Picture Common name Scientific name Height Color Flowering Period Light Requirement Moisture Requirement Description
Common yarrow - Achillea millefolium Common yarrow Achillea millefolium 8-16" white June-September
Perennial herb with feathery, lance-shaped leaves that are evenly distributed along stem. Flowers clustered, forming flat white top.
Rosy pussytoes - Antennaria rosea Rosy pussytoes Antennaria rosea 8-18" pink to rose Early summer
Mat-forming perennial with white or grey woolly leaves; attractive foliage through Fall. Common in the high desert of eastern Cascades, extends up in elevation to pine and Douglas fir forests. Often found on dry, rocky alpine ridges.
Western Columbine - Aquilegia formosa Western Columbine Aquilegia formosa <36" red spring
Tap-rooted perennial; delicate looking divided leaves. Good hummingbird, butterfly, pollinator plant.
Balsamroot - Balsamorhiza sagittata Balsamroot Balsamorhiza sagittata 12-24" yellow May
Large, long lived, tap-rooted perennial; numerous sunflower-like flowers heads.
Rocky Mountain bee plant - Cleome serrulata Rocky Mountain bee plant Cleome serrulata 3-6’ pink July- September
Tall, very drought tolerant annual with large, pink, late-season flowering blooms. Attracts numerous pollinators. Excellent for areas that receive minimal or no irrigation.
Blue mountain prairie clover - Dalea ornata Blue mountain prairie clover Dalea ornata <18" Lt. pink/ magenta June-August
Perennial. Flowering head up to 2 in. long. Habitat: rocky sandy places often with sagebrush. Native to Oregon.
Purple prairie clover - Dalea purpurea Purple prairie clover Dalea purpurea 12-36" Dark pink to purple May-September
Numerous flowers on cylindrical spike 1-2 inches long. Native to central US. Deep rooted, nitrogen fixing plant.
Fireweed - Epilobium angustifolium Fireweed Epilobium angustifolium 4-6" Dark pink July-September
Perennial herbaceous plant. Showy 1" flowers on terminal spike.
Threadleaf fleabane - Erigeron filifolius Threadleaf fleabane Erigeron filifolius <12” Light purple July-August
Perennial with many erect and spreading leaves with grayish hairs. Multiple purplish white flowers with yellow centers. Grow in dry prairie and rocky sites; often in sagebrush steppe.
Yellow desert daisy - Erigeron linearis Yellow desert daisy Erigeron linearis <8” yellow May-June
Tap-rooted, clumping perennial with multiple yellow, aster-like flowers. Grows in dry, rocky sites; often in sagebrush steppe.
Oval leaved Buckwheat - Eriogonum  ovalifolium Oval leaved Buckwheat Eriogonum ovalifolium 4-8” White, pink, light yellow July-August
Mat-forming perennial; Oval-shaped leaves silvery white. Single head of creamy white flowers on leafless stalk. Habitat: Sagebrush steppe to alpine ridges.
Sulfur Buckwheat - Eriogonum  umbellatum Sulfur Buckwheat Eriogonum umbellatum 4-12” White to bright yellow, reddish May-June
Tap-rooted, mat forming perennial; Leaves oblong or spatula-shaped in whorls at base of stems are woolly beneath. Leaves turn showy red/maroon in autumn; flowers turn rosy ting with age. Common in sagebrush steppe and grasslands, and dry open forests in central Oregon.
Creamy Buckwheat - Eriogonum heracleoides Creamy Buckwheat Eriogonum heracleoides 4-16” White to yellow Mid summer
Clump-forming perennial with linear, grayish woolly leaves in whorls at base of stems; flowers turn rosy ting with age. Habitat: Common in sagebrush steppe and grasslands, and dry open forests.
Round Headed Buckwheat - Eriogonum sphaerocephalum Round Headed Buckwheat Eriogonum sphaerocephalum <16” White to yellow Mid spring to summer
Perennial, shrub or sub shrub growth form. Flower heads round (popcorn-like).
Thyme leaved Buckwheat - Eriogonum thymoides Thyme leaved Buckwheat Eriogonum thymoides <6” Whitish pink to yellow May-June
Low growing perennial; woody, mat-forming sub-shrub with tiny grayish green, narrow linear leaves.
Oregon sunshine - Eriophyllum lanatum Oregon sunshine Eriophyllum lanatum 12-18” yellow May-August
Perennial with clumping growth form of grayish green leaves. Common in dry open habitats.
Sticky geranium - Geranium viscosissimum Sticky geranium Geranium viscosissimum 16-36” white to deep purple-magenta May-July
Perennial; Stems and leaves densely covered with sticky, glandular hairs. Habitat: dry grasslands and open forests.
Prairie Smoke - Geum triflorum Prairie Smoke Geum triflorum <18” pink May-June
Rhizomatous perennial Flowers urn-shaped; Fruits feathery clusters of seeds with plume-like bronze to purplish styles. Habitat: dry open forests, grasslands, and dry gravelly soils.
Scarlet gilia - Ipomopsis aggregata Scarlet gilia Ipomopsis aggregata <36” Red Late spring through summer
Biennial or short-lived perennial; Highly dissected leaves on numerous stems. Habitat: open rocky slopes, grasslands, open forests, plains, dry meadows and mountain slopes.
Blue Flag Iris - Iris missouriensis Blue Flag Iris Iris missouriensis 12-24” Blue to purple May-July
Perennial; rhizomatous with grass-like foliage and showy flowers. Prefers seasonally wet areas; moisture important through flowering period.
Bitterroot - Lewisia rediviva Bitterroot Lewisia rediviva 1-2” White to pink Late spring
Low growing perennial from a tap root. Small succulent, needle like foliage often gone when flowering. Flowers large 1.5-2 inches. Found growing in harsh rocky/gravelly sites. Great for rock gardens.
Lewis flax - Linum lewisii Lewis flax Linum lewisii 18-24” Blue to purple May-July
Native, semi-evergreen perennial. Grows in sagebrush steppe to open ponderosa pine forests.
Blue flax - Linum perenne Blue flax Linum perenne 18-24” Blue to purple May-July
Introduced from Eurasia. Naturalized throughout US.
Silver lupine - Lupinus argenteus Silver lupine Lupinus argenteus 18 - 36” Purple June-August
Grayish green foliage, silvery underneath; shrubby growth form Flowers growing on spike (raceme) up to 5”.
Broad leaved lupine - Lupinus latifolius Broad leaved lupine Lupinus latifolius 12 - 48” Purple May-June
Broad leaved. Perennial with bushy growth habit. Showy flowers growing on tall spike (raceme), 4-12”. Heavy nitrogen fixer; does well in nutrient poor soils.
Prairie lupine - Lupinus lepidus Prairie lupine Lupinus lepidus <5” Blue-purple May to June
Low growing; foliage dense silky gray. Tolerant of gravelly soils.
Large leaved lupine - Lupinus polyphyllus Large leaved lupine Lupinus polyphyllus <48” Blue - Purple June to July
Large leaves up to 6 inches in diameter. Showy flowers growing on tall spike (raceme), 6 to 18”. Prefers moist soil; found in riparian areas.
Yellow monkeyflower - Mimulus guttatus Yellow monkeyflower Mimulus guttatus <36” yellow May-August
Showy 1’ wide, 5 lobed flowers with orange spots on lower lip. Habitat includes wet seeps and draws, moist forest openings, and streamsides.
Pink monkeyflower - Mimulus lewisii Pink monkeyflower Mimulus lewisii 12-32” pink July to September
Perennial with showy, large 2-lipped, trumpet shaped flower. Habitat includes wet seeps and draws, moist forest openings, and streamsides.
Fragrant evening primrose - Oenothera caespitosa Fragrant evening primrose Oenothera caespitosa 3-9" white late spring - summer
Showy white flowers open after sunset and redden with age. Beautiful in moonlight. Grows in sagebrush-steppe and pine forest.
Davidson’s penstemon - Penstemon davidsonii Davidson’s penstemon Penstemon davidsonii <12” lavender June-August
Shrubby, mat-forming perennial. Found in rocky outcrops.
Shrubby penstemon - Penstemon fruiticosus Shrubby penstemon Penstemon fruiticosus <18” Blue to lavender May - August
Woody perennial, generally prostrate and mat forming; Leaves leathery and shiny. Habitat: open rocky slopes to moderately dense forest from the foothills to high mountains.
Lowly penstemon - Penstemon humilis Lowly penstemon Penstemon humilis <14” Blue to purple May - August
Herbaceous to woody sub-shrub perennial with small, numerous tubular flowers. Habitat ranges from sagebrush steppe to highly elevation in forest openings.
Pineleaf penstemon - Penstemon pinifolius Pineleaf penstemon Penstemon pinifolius 12-15" red late June through August
Compact low growing, perennial with numerous, red tubular flowers and small, narrow leaves. Native to the southwestern US. Attracts hummingbirds.
Cutleaf penstemon - Penstemon richardsonii Cutleaf penstemon Penstemon richardsonii 8-32” Pink to lavender May - August
Numerous sprawling stems arise from shrubby base with serrated leaves. Habitat: open rocky places and cliff sides.
Rock penstemon - Penstemon rupicola Rock penstemon Penstemon rupicola <6” pink June-July
Semi-evergreen perennial: shrubby at base; leaves bluish and leathery. Basalt rock cliffs or rock outcrops.
Rydberg’s penstemon - Penstemon rydbergii Rydberg’s penstemon Penstemon rydbergii <24” Blue to purple May - July
Beautiful when planted in masses. Prefers early season moisture. Habitat: meadows to moist open slopes from foothills to mid-montane.
Showy penstemon - Penstemon speciosus Showy penstemon Penstemon speciosus <36” Blue to purple May-July
Perennial with showy flowers, 1-1.5” long. Habitat sagebrush prairies to ponderosa pine forests to subalpine.
Rocky Mountain penstemon - Penstemon strictus Rocky Mountain penstemon Penstemon strictus 24-36” Blue to purple May-July
Semi-evergreen perennial with tall stems and multiple showy flowers.
Alpine penstemon - Penstemon venustus Alpine penstemon Penstemon venustus <20” blue May - August
Perennial with showy flower and foliage. Habitat: fairly good soil or rocky sites from forest to low meadows to subalpine.
Whipple’s penstemon - Penstemon whippleanus Whipple’s penstemon Penstemon whippleanus <24” blue-purple to wine red July to August
Perennial with showy flowers up to 1 inch.
Oregon Checkermallow - Sidalcea oregana Oregon Checkermallow Sidalcea oregana <24” Light pink July to September
Perennial with flowers growing in spike. Host plant for butterflies. Eastern Cascade species growth habitat ranges from sagebrush steppe to seasonally wet meadows to ponderosa pine forests.
Gooseberry leaved globemallow - Sphaeralcea grossulariifolia Gooseberry leaved globemallow Sphaeralcea grossulariifolia <12-30” Orange June-August
Tap-rooted, short-lived (2-3 years) perennial with silvery foliage. Flowers on short, dense, terminal spikes.
Scarlet globemallow - Sphaeralcea munroana Scarlet globemallow Sphaeralcea munroana 24-30” orange May-August
Tap-rooted, perennial with grayish green foliage. Multiple flowers on long stems; long bloom period.
Showy townsendia - Townsendia florifer Showy townsendia Townsendia florifer 2-6” White to pinkish white June
Short-lived perennial with several stems containing dense, short hairs. Flowers numerous.