[Wildflower Bloom Reports for the Columbia River Gorge: 2025]

Wildflower Bloom in the Columbia River Gorge of Oregon and Washington

Memaloose Trail (USFS Properties south of US Highway 30)

March 29, 2025

A swale full of blooming grass widows near Memaloose, Columbia River Gorge,,,,,,,,March 29, 2025.

A swale full of blooming grass widows near Memaloose, Columbia River Gorge,,,,,,,,March 29, 2025.

* Indicates the wildflower is currently in bloom.

Comprehensive Plant List for the Memaloose Area

Fragile Fern: Cystopteris fragilis

Ponderosa Pine: Pinus ponderosa var. ponderosa

Douglas Fir: Pseudotsuga menziesii var. menziesii

Big-leaf Maple: Acer macrophyllum

Oregon White Oak: Quercus garryana var. garryana

* Long-anthered Woodrush: Luzula macrantha - Beginning to bloom.

Bristly Dog's-tail Grass: Cynosurus echinatus

Bluebunch Wheatgrass: Pseudoroegneria spicatum - Common away from the cultivated fields areas that were heavily grazed.

Medusahead Wildrye: Taeniatherum caput-medusae

Ookow, Ball-head Cluster Lily: Dichelostemma congestum

* Pale-anther Glacier Lily: Erythronium grandiflorum var. pallidum - Near peak bloom.

Chocolate Lily: Fritillaria affinis - In bud.

* Yellow Bells: Fritillaria pudica - Fading out of bloom.

* Grass Widows: Olsynium douglasii var. douglasii - Fading out of bloom.

Heart-leaf Buckwheat: Eriogonum compositum var. compositum

Tall Buckwheat: Eriogonum elatum

Sheep Sorrel: Rumex acetosella

* Miner's Lettuce: Claytonia perfoliata ssp. perfoliata

* Line-leaf Montia: Montia linearis

* Upland Larkspur: Delphinium nuttallianum - Beginning to bloom.

* Western Buttercup: Ranunculus occidentalis var. occidentalis

* Shining Oregon Grape: Berberis aquifolium

* Oaks Toothwort: Cardamine nuttallii

* Spring Whitlow-grass: Draba verna

* Fringe Pod: Thysanocarpus curvipes

* Smooth Praire Star: Lithophragma glabrum

* Small-flowered Prairie Star: Lithophragma parviflorum

* Peak Saxifrage: Micranthes fragosa

* Northwestern Saxifrage: Micranthes integrifolia

Mock Orange: Philadelphus lewisii

Common Broad-leaf Lupine: Lupinus latifolius x sericeus (formerly Lupinus latifolius var. thompsonianus) - A few plants in bud.

Bighead Clover: Trifolium macrocephalum

Vetch: Vicia sp.

* Filaree: Erodium cicutarium

Poison Oak: Toxicodendron diversilobum

* Columbia Desert Parsley: Lomatium columbianum - Fading out of bloom.

* Butterfly-loving (Pungent) Desert Parsley: Lomatium papilioniferum

* Biscuitroot: Lomatium macrocarpum (yellow-flowered form)

* Bare-stem Desert Parsley: Lomatium nudicaule - Beginning to bloom.

* Nineleaf Desert Parsley: Lomatium triternatum var. triternatum - Beginning to bloom.

Columbia Frasera: Frasera albicaulis ssp. nitida

* Desert Shooting Star: Dodecatheon conjugens

* Poet's Shooting Star: Dodecatheon poeticum

* Midget Phlox: Microsteris gracilis

Ball-head Waterleaf: Hydrophyllum capitatum var. thompsonii

* Meadow Nemophila: Nemophila pedunculata

Silverleaf Phacelia: Phacelia hastata var. hastata

* Henbit: Lamium amplexicaule

* Large-flowered Blue-eyed Mary: Collinsia grandiflora

* Small-flowered Blue-eyed Mary: Collinsia parviflora

* Few-flowered Blue-eyed Mary: Collinsia sparsiflora

Bedstraw: Galium aparine

* Big Root: Marah oreganus - Beginning to bloom.

Common Snowberry: Symphoricarpos albus var. laevigatus

Yarrow: Achillea millefolium

* Carey's Balsamroot: Balsamorhiza careyana X deltoidea - Beginning to bloom.

Bachelor's Button: Centaurea cyanus

Columbia Goldenweed: Columbiadora hallii

* Gold Stars: Crocidium multicaule - Past their peak.

Woolly Sunflower: Eriophyllum lanatum var. lanatum

Scouler's Hawkweed: Hieracium scouleri (formerly var. cynoglossoides ?)

Western Groundsel: Senecio integerrimus var. exaltatus - In bud.

* Common Dandelion: Taraxacum officinale


Paul Slichter