Subalpine Fir: Abies lasiocarpa
Sitka Alder: Alnus viridis
Alaska Cedar: Chamaecyparis nookatensis
Mountain Juniper: Juniperus communis var. montana
Oregon Boxwood: Paxistima myrsinites
Western White Pine: Pinus monticola
Western Hemlock: Tsuga heterophylla
Lacelip Fern: Cheilanthes gracillima
Fragile Fern: Cystopteris fragilis
Field Horsetail: Equisetum arvense
Sword Fern: Polystichum munitum
* Daggerleaf Rush: Juncus ensifolius
* Parry's Rush: Juncus parryi
* Hitchcock's Woodrush: Luzula hitchcockii
* Small-flowered Woodrush: Luzula parviflora
* Piper's Woodrush: Luzula piperi - Beginning to bloom at the ridgetop.
* Star Sedge: Carex echinata (var. echinata ?)
* Merten's Sedge: Carex mertensii
* Black Alpine Sedge: Carex nigricans
* Showy Sedge: Carex spectabilis
* Variable Bentgrass: Agrostis variabilis
* California Brome: Bromus carinatus var. carinatus - Spreading panicle branches
* Bottlebrush Squirreltail: Elymus elymoides
* Idaho Fescue: Festuca idahoensis
* Annual Bluegrass: Poa annua
* Olympic Onion: Allium crenulatum
* Queen's Cup: Clintonia uniflora
Star-flowered False Solomon Seal: Maianthemum stellatum - Past bloom.
Rattlesnake Orchid: Goodyera oblongifolia - In bud.
* Northwestern Twayblade: Listera caurina
* Alaska Rein Orchid: Piperia unalascensis
* White Bog Orchid: Platanthera dilatata var. dilatata
* Slender Bog Orchid: Platanthera stricta - Fading out of bloom.
* Willow-leaved Dock: Rumex salicifolius (var. triangulivalvis ?)
* Heart-leaved Springbeauty: Claytonia cordifolia - Fading out of bloom.
* Siberian Miner's Lettuce: Claytonia sibirica
* Water Montia: Montia chamissoi
* Streambank Springbeauty: Montia parvifolia
* Thread-leaved Sandwort: Eremogone capillaris var. americana
* Reddish Sandwort: Minuartia rubella
* Big-leaf Sandwort: Moehringia macrophylla - Fading out of bloom.
* Pearlwort: Sagina sp. ?
* Parry's Catchfly: Silene parryi
Red Sandspurry: Spergularia rubra - Only at the trailhead.
* Cliff Anemone: Anemone multifida
* Western Pasqueflower: Anemone occidentalis
* Red Columbine: Aquilegia formosa
* Rockslide Larkspur: Delphinium glareosum
* Pale Larkspur: Delphinium glaucum
* Mountain Larkspur: Delphinium menziesii
* Snow Buttercup: Ranunculus eschscholtzii var. suksdorfii - Blooming on scree on the north side of the ridge.
* Little Buttercup: Ranunculus uncinatus
* Western Meadowrue: Thalictrum occidentale
* Bleeding Heart: Dicentra formosa
* American Wintergreen: Barbarea orthoceras
* Spreadingpod Rockcress: Boechera xdivaricarpa
* Lyall's Rockcress: Boechera lyallii
* Holboell's Rockcress: Boechera retrofracta
* Little Western Bittercress: Cardamine oligosperma - Fading out of bloom in moist places.
* Cascade Wallflower: Erysimum arenicola
Alpine Smelowskia: Smelowskia americana - Past bloom.
Tower Mustard: Turritis glabra - Fruits maturing.
* Spreading Stonecrop: Sedum divergens
* Worm-leaf Stonecrop: Sedum stenopetalum
* Elmera: Elmera racemosa - Blooming on scree on the north side of the ridge.
* Small-flowered Alumroot: Heuchera micrantha var. diversifolia
* Alpine Mitrewort: Mitella pentandra
* Spotted Saxifrage: Saxifraga bronchialis ssp. austromontana
* Tufted Alpine Saxifrage: Saxifraga cespitosa - Fading out of bloom.
* Dotted Saxifrage: Micranthes nelsoniana var. cascadensis
* Fringed Grass-of-parnassus: Parnassia fimbriata - Beginning to bloom.
Prickly Currant: Ribes lacustre
* Shrubby Cinquefoil: Dasiphora fruticosa
Woods Strawberry: Fragaria vesca (var. bracteata ?)
* Old Man's Whiskers: Geum triflorum var. ciliatum - Fading out of bloom.
* Partridgefoot: Luetkea pectinata
* Rockmat: Petrophytum hendersonii
* Fanleaf Cinquefoil: Potentilla flabellifolia
* Diverse-leaved Cinquefoil: Potentilla glaucophylla
* Slender Cinquefoil: Potentilla gracilis (var. fastigiata ?)
* Villous Cinquefoil: Potentilla villosa
* Baldhip Rose: Rosa gymnocarpa
* Dwarf Bramble: Rubus lasiococcus - A few in bloom.
* Western Sweet Vetch: Hedysarum occidentale - Beginning to bloom on scree on the north side of the pass.
* Arctic Lupine: Lupinus arcticus
* Yellow-flower Locoweed: Oxytropis campestris var. gracilis
Early Blue Violet: Viola adunca
Stream Violet: Viola glabella
Round-leaved Violet: Viola orbiculata
* Fireweed: Chamerion angustifolium
* Alpine Willowherb: Epilobium anagallidifolium ?
* Ciliate Willowherb: Epilobium ciliatum (var. ?)
* Club-fruited Willowherb: Epilobium clavatum
Smooth Willowherb: Epilobium glaberrimum var. fastigiatum
* Yellow Willowherb: Epilobium luteum
* Small-flowered Willowherb: Epilobium minutum
* Cow Parsnip: Heracleum lanatum
Fernleaf Desert Parsley: Lomatium dissectum var. dissectum
* Cascade Desert Parsley: Lomatium martindalei
Barestem Desert Parsley: Lomatium nudicaule
* Common Sweet-cicely: Osmorhiza berteroi
Western Sweet-cicely: Osmorhiza occidentalis - Fruits maturing.
* Sierra Snakeroot: Sanicula graveolens - Fading out of bloom.
* White Mountain Heather: Cassiope mertensiana
* Little Pipsissewa: Chimaphila menziesii
Pipsissewa: Chimaphila umbellata
* Many-flowered Indian Pipe: Monotropa hypopitys
* Sidebells Wintergreen: Orthillia secunda
* White-veined Wintergreen: Pyrola picta - Beginning to bloom.
Mountain Huckleberry: Vaccinium membranaceum
* Spreading Dogbane: Apocynum androsaemifolium var. androsaemifolium
* Smooth Douglasia: Douglasia laevigata - Blooming on scree at the pass.
* Tall Mountain Shooting Star: Dodecatheon jeffreyi - Fading out of bloom.
* Fendler's Waterleaf: Hydrophyllum fendleri - Fading out of bloom.
Silverleaf Phacelia: Phacelia hastata var. leptosepala
* Varileaf Phacelia: Phacelia heterophylla (var. ?)
* Silky Phacelia: Phacelia sericea var. sericea - Fading out of bloom.
* Cooley's Hedge-nettle: Stachys cooleyae
* Harsh Paintbrush: Castilleja hispida var. hispida (Specimens may be hybrids with adjacent C. miniata)
* Common Paintbrush: Castilleja miniata var. dixonii
* Olympic Paintbrush: Castilleja parviflora var. olympica
* Woodland Beardtongue: Nothochelone nemorosa
* Mountain Owlclover: Orthocarpus imbricatus
* Sickletop Lousewort: Pedicularis racemosa
* Davidson's Penstemon: Penstemon davidsonii var. menziesii
* Small-flowered Penstemon: Penstemon procerus var. tolmiei - Fading out of bloom at the ridgetop.
* Cascade Penstemon: Penstemon serrulatus
* American Brooklime: Veronica americana
* Cusick's Speedwell: Veronica cusickii
* Clustered Broomrape: Aphyllon fasiculatum or Clustered Broomrape: Aphyllon franciscanum ? - Uncertain host.
* Fragrant Bedstraw: Galium triflorum
* Twinflower: Linnaea borealis - Only a few plants in bloom.
* Creeping Snowberry: Symphoricarpos mollis
* Scouler's Valerian: Valeriana scouleri
* Mountain Heliotrope: Valeriana sitchensis
* Olympic Harebell: Campanula piperi
* Bluebells of Scotland: Campanula rotundifolia
* Scouler's Harebell: Campanula scouleri
* Yarrow: Achillea millefolium
* Orange Agoseris: Agoseris aurantiaca
* Large-flowered Agoseris: Agoseris grandiflora
* Pearly Everlasting: Anaphalis margaritacea
* Raceme Pussytoes: Antennaria racemosa
* Rosy Pussytoes: Antennaria rosea
* Umber Pussytoes: Antennaria umbrinella
* Streambank Arnica: Arnica amplexicaulis
* Heart-leaved Arnica: Arnica cordifolia
* Slender Arnica: Arnica gracilis
* Nevada Arnica: Arnica nevadensis
* Sticky-leaf Arnica: Arnica ovata
* Nodding Arnica: Arnica parryi
* Western Mugwort: Artemisia ludoviciana ssp. ludoviciana
* Edible Thistle: Cirsium edule var. macounii
* Western Hawksbeard: Crepis occidentalis - Blooming at the pass.
* Cutleaf Daisy: Erigeron compositus
* Showy Fleabane: Erigeron speciosus - Beginning to bloom at the pass.
* Oregon Sunshine: Eriophyllum lanatum var. lanatum
* Olympic Mountain Aster: Eucephalus paucicapitatus
* White-flowered Hawkweed: Hieracium albiflorum
* Slender Hawkweed: Hieracium gracile
* Silverback Luina: Luina hypoleuca
* Pineapple Weed: Matricaria discoidea
* Flett's Ragwort: Packera flettii
* American Sawwort: Saussurea americana - Beginning to bloom.
Olympic Mountain Ragwort: Senecio neowebsteri
* Arrowleaf Groundsel: Senecio triangularis
* Northern Goldenrod: Solidago multiradiata
* Leafybract Aster: Symphyotrichum foliaceum var. foliaceum
Rocky Mountain Dandelion: Taraxacum eriphorum ? - Basal leaves at the ridgetop.