Wildflowers Currently in Bloom in the Columbia River Gorge of Oregon and Washington
Hamilton Mountain, Beacon Rock State Park
April 23, 2011
Weather: Moderately windy with gusts to 20 mph from the east. Light breeze on wind sheltered slopes on the west side of Hamilton Mt. Temperatures in the 50s in the morning to near 70 in the afternoon.
Tomlike and Chinidere Mountains in Oregon and Grassy Knoll in Washington were visible. All three were only partially covered with snow. Mt. Adams and the top of Mt. Hood were both visible and snow-covered in the distance. This hike was done as a loop by following the most difficult trail up on the south side of Hamilton Mt. to the summit and then following the ridgeline north to the fire road. We then descended to the west along the road before cutting off onto Joe's Cutoff Trail before picking up the Hardy Creek Trail and following it back to the Hamilton Mt. Trail.
Grand Fir: Abies grandis
Douglas Fir: Pseudotsuga menziesii
Western Hemlock: Tsuga heterophylla
Vine Maple: Acer circinatum
Bigleaf Maple: Acer macrophyllum - Flower buds ready to break.
* Red Alder: Alnus rubra
* Hazelnut: Corylus cornuta var. californica - Leaf buds breaking.
Creek Dogwood: Cornus sericea
English Holly: Ilex aquifolium
Oregon White Oak: Quercus garryana
Cascara: Rhamnus purshiana - Leaf buds breaking.
* Small-flowered Woodrush: Luzula parviflora
Stinging Nettles: Urtica dioica
Nodding Onion: Allium cernuum
Columbia Lily: Lilium columbianum
False Lily-of-the-valley: Maianthemum dilatatum
False Solomon Seal: Maianthemum racemosum ssp. amplexicaule
Star-flowered False Solomon Seal: Maianthemum stellatum
Bronzebells: Stenanthium occidentale
Meadow Deathcamas: Toxicoscordion venonosus
* Western Wake-robin: Trillium ovatum
* Daffodils: Narcissus sp.
* Fairy Slipper: Calypso bulbosa
Rattlesnake-plantain: Goodyera oblongifolia
Wild Ginger: Asarum caudatum
Heart-leaf Buckwheat: Eriogonum compositum var. compositum
Miner's Lettuce: Claytonia perfoliata ssp. intermontana
* Candyflower: Claytonia siberica - A few plants beginning to bloom at lower elevations.
Columbia Lewisia: Lewisia columbiana var. columbiana
Streambank Springbeauty: Montia parvifolia
Field Chickweed: Cerastium arvense ssp. strictum
Deptford Pink: Dianthus armeria
* Big-leaf Sandwort: Moehringia macrophylla - A few plants beginning to bloom at lower elevations.
* Common Chickweed: Stellaria media
Baneberry: Actaea rubra
Columbia Windflower: Anemone deltoidea - Many have chocolate-colored leaves which turn green as they mature.
Oregon Anemone: Anemone oregana
Western Columbine: Aquilegia formosa
Cut-leaf Gold Threads: Coptis laciniata
Rockslide Larkspur: Delphinium glareosum ?
Western Meadowrue: Thalictrum occidentale
* Shining Oregongrape: Berberis aquifolium
* Cascade Oregongrape: Berberis nervosa
Mouse-ear Cress: Arabidopsis thaliana
* Angle-leaf Bittercress: Cardamine angulata
* Hairy Bittercress: Cardamine hirsuta
* Coast Toothwort: Cardamine integrifolia
* Springbeauty: Cardamine nuttallii
* Little Western Bittercress: Cardamine oligosperma
* Spring Whitlow-grass: Draba verna
Rough Wallflower: Erysimum capitatum
Honesty: Lunaria annua
* Shepherd's Cress: Teesdalia nudicaulis
Oregon Stonecrop: Sedum oreganum
Broadleaved Stonecrop: Sedum spathulifolium
* Dutchman's Breeches: Dicentra cucullaria
* Bleeding Heart: Dicentra formosa
Mock Orange: Philadelphus lewisii
Smallflower Alumroot: Heuchera micrantha var. micrantha
Smooth Woodlandstar: Lithophragma glabrum
* Western Saxifrage: Saxifraga nidifica var. claytoniifolia - Flower buds forming.
* Rustyhair Saxifrage: Saxifraga rufidula
Fringecup: Tellima grandiflora - Beginning to bloom at the trailhead.
Youth-on-age: Tolmiea menziesii
Serviceberry: Amelanchier alnifolia (var. semiintegrifolia?)
Goat's Beard: Aruncus sylvester
Wood Strawberry: Fragaria vesca ssp. bracteata
Broadpetal Strawberry: Fragaria virginiana ssp. platypetala
Largeleaf Avens: Geum macrophyllum var. macrophyllum
Creambush Oceanspray: Holodiscus discolor
* Indian Plum: Oemlaria cerasiformus - Finishing blooming at lower elevations.
Sticky Cinquefoil: Potentilla glandulosa (var. ?)
Baldhip Rose: Rosa gymnocarpa
Himalayan Blackberry: Rubus armeniacus
Thimbleberry: Rubus parviflorus - Leaf buds breaking.
* Salmonberry: Rubus spectabilus
Pacific Trailing Blackberry: Rubus ursinus var. macropetala
Pyramid Spiraea: Spiraea pyramidata
Scot's Broom: Cytisus scoparius
Largeleaf Lupine: Lupinus polyphyllus?
White Clover: Trifolium repens
* Pioneer Violet: Viola glabella
* Roundleaf Violet: Viola orbiculata
* Evergreen Violet: Viola sempervirens
Dove'sfoot Geranium: Geranium molle
Herb Robert: Geranium robertianum
Wood Sorrel: Oxalis sp.
Poison Oak: Toxicodendron diversiloba
Klamath Weed: Hypericum perforatum
Enchanter's Nightshade: Circaea alpina
Devil's Club: Oploplanax horridum
Angelica: Angelica sp. ?
Cow Parsnip: Heracleum lanatum
Fernleaf Desert Parsley: Lomatium dissectum var. dissectum
* Cascade Desert Parsley: Lomatium martindalei
Barestem Desert Parsley: Lomatium nudicaule
Salt and Pepper: Lomatium (piperi ?)
Nineleaf Desert Parsley: Lomatium triternatum var. triternatum
Mountain Sweet-cicely: Osmorhiza berteroi (O. chilense)
Bearberry: Arctostaphylos uva-ursi
Little Pipsissewa: Chimaphila menziesii
Salal: Gaultheria shallon
White-vein Pyrola: Pyrola picta
Red Huckleberry: Vaccinium parvifolium
Broadleaved Starflower: Trientalis latifolia
Scarlet Gilia: Ipomopsis (aggregata ?)
Spreading Phlox: Phlox diffusa
Ballhead Waterleaf: Hydrophyllum capitatum var. thompsonii ?
Pacific Waterleaf: Hydrophyllum tenuipes
Meadow Nemophila: Nemophila pedunculata
Woodland Phacelia: Phacelia nemoralis
Lemon Balm: Melissa officinalis
Selfheal: Prunella vulgaris (var. lanceolatum ?)
Harsh Paintbrush: Castilleja hispida (var. ?) - Plants are in bud.
Small-flowered Blue-eyed Mary: Collinsia parviflora - In bud.
Chickweed Monkeyflower: Mimulus alsinoides
Common Monkeyflower: Mimulus guttatus
Broad-leaf Penstemon: Penstemon ovatus
Cascade Penstemon: Penstemon serrulatus
Common Mullein: Verbascum thapsus
Annual Bedstraw: Galium aparine var. echinospermum
Fragrant Bedstraw: Galium triflorum
Twinflower: Linnaea borealis
Common Snowberry: Symphoricarpos albus
Scouler's Heliotrope: Valeriana scouleri
Scouler's Harebell?: Campanula scouleri ?
Yarrow: Achillea millefolium
Pathfinder: Adenocaulon bicolor
Pearly Everlasting: Anaphalis margaritacea
Common Burdock: Arctium minus
Mountain Arnica: Arnica latifolia
* Gold Stars: Crocidium multicaule
Annual Fleabane: Erigeron annuus
Oregon Sunshine: Eriophyllum lanatum (var. leucophyllum ?)
Hawkweed: Hieracium sp. (non-native)
False Dandelion: Hypochaeris radicata
Common Nipplewort: Lapsana communis
* Sweet Colt's Foot: Petasites frigidus
Columbia Gorge Groundsel: Senecio bolanderi var. harfordii
Western Groundsel: Senecio integerrimus (var. ?)
* Common Dandylion: Taraxacum officinale
Mosses, Clubmosses and Spikemosses
Wallace's Spikemoss: Selaginella wallacei
Ferns and Fern Allies
Field Horsetail: Equisetum arvense
Maidenhair Spleenwort: Asplenium trichomanes
Bracken Fern: Pteridium aquilinum
Fragile Fern: Cystopteris fragilis
Sword Fern: Polystichum munitum
Licorice Fern: Polypodium glycyrrhiza
Maidenhair Fern: Adiantum aleuticum
Goldback Fern: Pentagramma triangularis var. triangularis
Paul Slichter