Juniper Haircap Moss: Polytrichum juniperinum
Western Lady Fern: Athyrium filix-femina ssp. cyclosorum
Deer Fern: Blechnum spicant
Common Horsetail: Equisetum arvense
Western Polypody: Polypodium hesperium ?
Sword Fern: Polystichum munitum
Northern Bracken Fern: Pteridium aquilinum var. pubescens
Pacific Silver Fir: Abies amabilis
Noble Fir: Abies procera
Lodgepole Pine: Pinus contorta (var. ?)
Western White Pine: Pinus monticola
Douglas Fir: Pseudotsuga menziesii var. menziesii
Western Hemlock: Tsuga heterophylla
Vine Maple: Acer circinatum
Rocky Mountain Maple: Acer glabrum var. douglasii
Sitka Alder: Alnus viridis ssp. sinuata
Scouler's Willow: Salix scouleriana
Sitka Willow: Salix sitchensis
Black Cottonwood: Populus trichocarpa
* Merten's Sedge: Carex mertensii
* Showy Sedge: Carex spectabilis
* Merten's Rush: Juncus mertensianus - Blooming in moist places along the Loowit Trail.
Parry's Rush: Juncus parryi
* Small-flowered Woodrush: Luzula parviflora
* Mountain Bentgrass: Agrostis variabilis - Along the Loowit Trail.
* Sweet Vernalgrass: Anthoxanthum odoratum - At the trailhead.
* Columbia Brome: Bromus vulgaris ?
* Orchard Grass: Dactylis glomerata - At the trailhead.
* Blue Wildrye: Elymus glaucus
* Spike Trisetum: Trisetum spicatum ? - Along the Loowit Trail.
* Bead Lily: Clintonia uniflora
* Columbia Lily: Lilium columbianum
* False Solomon Seal: Maianthemum racemosum ssp. amplexicaule - Only in bloom on north-facing slopes in forest below the Loowit Trail.
Star-flowered False Solomon Seal: Maianthemum stellatum - Fruits developing.
Hooker's Fairybells: Prosartes hookeri ? - Fruits forming.
Western Wakerobin: Trillium ovatum
* Spotted Coralroot: Corallorhiza maculata - Fading out of bloom.
Rattlesnake Plantain: Goodyera oblongifolia
* Broad-lipped Twayblade: Listera convallarioides - Mostly past bloom.
* Cascade Fleeceflower: Aconogonon davisiae (var. ?)
* Dirty Socks: Eriogonum pyrolifolium var. coryphaeum
Broadleaf Knotweed: Polygonum minimum - Open areas along the Loowit Trail.
* Pussypaws: Calyptridium umbellatum
* Siberian Spring Beauty: Claytonia siberica
* Littleleaf Montia: Montia parvifolia
* Common Mouse-ear Chickweed: Cerastium fontanum - Near the trailhead.
* Bigleaf Sandwort: Moehringia macrophylla
Baneberry: Actaea rubra - Berries forming.
* Columbia Windflower: Anemone deltoidea
* False Bugbane: Trautvetteria caroliniensis - In moist areas in forest.
Vanilla Leaf: Achlys triphylla - Past bloom.
Cascade Oregon Grape: Berberis nervosa - Fruits forming.
* Inside-out-flower: Vancouveria hexandra
Bleeding Heart: Dicentra formosa
* Rusty Saxifrage: Micranthes ferruginea - In bloom in moist, shady places along the Loowit Trail.
Brewer's Mitrewort: Mitella breweri - Under old growth forest.
* Fringe Cups: Tellima grandiflora - Fading out of bloom.
* Foamflower: Tiarella trifoliata var. unifoliata
* Youth-on-age: Tolmiea menziesii var.
* Prickly Currant: Ribes lacustre - Only a few plants in bloom.
Serviceberry: Amelanchier alnifolia (var. ?)
* Goatsbeard: Aruncus dioicus var. acuminatus
* Broadpetal Strawberry: Fragaria virginiana ssp. platypetala
* Partridgefoot: Luetkea pectinata
* Baldhip Rose: Rosa gymnocarpa
* Dwarf Bramble: Rubus lasiococcus - A few plants in bloom at higher elevations.
* Thimbleberry: Rubus parviflorus var. parviflorus - A few plants in bloom at higher elevations.
Salmonberry: Rubus specatabilis - Fruits ripening.
* Pacific Dewberry: Rubus ursinus - Beginning to bloom at higher elevations.
* Cascade Mt. Ash: Sorbus scopulina var. cascadensis ?
* Birchleaf Spiraea: Spiraea betulifolia var. lucida
* Subalpine Spirarea: Spiraea densiflora - In bloom along the Loowit Trail in ravines. Not common.
* Western Bunchberry: Cornus unalaschkensis - Blooming at higher elevations in the forest.
* Broadleaf Lupine: Lupinus latifolius var. latifolius - Fading out of bloom.
* Dwarf Lupine: Lupinus lepidus var. lobbii
* White Clover: Trifolium repens - Along the trail near the trailhead.
* Trillium-leaf Wood Sorrel: Oxalis trilliifolia - Found under old growth forest.
Pioneer Violet: Viola glabella
Darkwoods Violet: Viola orbiculata
Klamathweed: Hypericum perforatum
Fireweed: Chamerion angustifolium
* Enchanter's Nightshade: Circaea alpina - In bloom under the old growth forest.
* Willowherb: Epilobium sp. - Small, pink-flowered, riparian areas.
* Smooth Willowherb: Epilobium glabberimum var. fastigiatum
* White-flowered Willowherb: Epilobium lactiflorum ?
* Chaparral Willowherb: Epilobium minutum
* Cascade Desert Parsley: Lomatium martindalei
Pinemat Manzanita: Arctostaphylos nevadensis - Forming fruits.
* Little Pipsissewa: Chimaphila menziesii
* Pipsissewa: Chimaphila umbellata
Slender Wintergreen: Gaultheria ovatifolia
* Salal: Gaultheria shallon - Fading out of bloom.
Pinesap: Hypopitys monotropa - Plants arising out of the ground.
Indian Pipe: Monotropa uniflora - In bud. Plants arising from the ground under lower parts of the old growth forest.
* Sidebells Wintergreen: Orthillia secunda - In bloom at higher elevations under the forest.
* Pink Heather: Phyllodoce empetriformis - Blooming on open slopes along the Loowit Trail.
* White-vein Wintergreen: Pyrola picta
Thinleaf Huckleberry: Vaccinium membranaceum - Berries nearly ripe.
Oval-leaf Huckleberry: Vaccinium ovalifolium - Berries nearly ripe.
Red Huckleberry: Vaccinium parvifolium - Berries nearly ripe.
Varied-leaf Collomia: Collomia heterophylla - In bud.
* Spreading Phlox: Phlox diffusa - Fading out of bloom along the Loowit Trail.
* Pacific Waterleaf: Hydrophyllum tenuipes - Fading out of bloom at higher elevations under forest canopy.
* Silverleaf Phacelia: Phacelia hastata var. hastata
* Oregon Phacelia: Phacelia nemoralis ssp. oregonensis
* Common Paintbrush: Castilleja miniata ssp. miniata - Very common on the Plains of Abraham.
* Woodland Beardtongue: Nothochelone nemorosa
* Sickletop Lousewort: Pedicularis racemosa
* Cardwells Penstemon: Penstemon cardwellii
* Rock Penstemon: Penstemon rupicola - Past bloom on sheer cliffs but at peak bloom on moist pumice flats.
* Cascade Penstemon: Penstemon serrulatus
* Broadleaf Plantain: Plantago major - At the trailhead.
* Oregon Bedstraw: Galium oreganum - Beginning to bloom under old growth forest.
* Fragrant Bedstraw: Galium triflorum
* Twinflower: Linnaea borealis
Elderberry: Sambucus racemosa (var. ?) - Fruits forming.
* Mountain Heliotrope: Valeriana sitchensis - Only in bloom along Ape Canyon Trail just above the highest point of old growth forest.
* Scouler's Harebell: Campanula scouleri
* Common Yarrow: Achillea millefolium
* Pathfinder: Adenocaulon bicolor
* Orange Agoseris: Agoseris aurantiaca - Blooming along the Loowit Trail. Not common.
* Pearly Everlasting: Anaphalis margaritacea - Beginning to bloom.
* Rosy Pussytoes: Antennaria rosea - Beginning to bloom along the Loowit Trail.
* Mountain Arnica: Arnica latifolia - Blooming in moist places with young trees along the Loowit Trail.
* Oregon Sunshine: Eriophyllum lanatum (var. lanatum ?) - In bloom along the Loowit Trail.
* Cascade Aster: Eucephallus ledophyllus var. ledophyllus - Beginning to bloom along the Loowit Trail.
* White-flowered Hawkweed: Hieracium albiflorum
* Slender Hawkweed: Hieracium triste - Blooming along the Loowit Trail about three-quarters of a mile north of the junction with the Ape Canyon Trail.
* False Dandelion: Hypochaeris radicata
* Silverback Luina: Luina hypoleuca - Peak bloom along cliff tops at the east edge of the Plains of Abraham.
* Wire Lettuce: Mycelis muralis
Numerous mountain goats with kids seen on high, rocky meadows higher on the mountain.
Osprey
Ruffed Grouse - Booming in old growth along the upper Ape Canyon Trail.
Northern Flicker
Ravens
Band-tailed Pigeons - Cooing in old growth along the upper Ape Canyon Trail.
Black-headed Grosbeaks - Still vocal.
Hermit Thrushes - Still vocal.
Olive-sided Flycatchers - Distinctive calls heard along the upper Ape Canyon Trail.
Small Flycatchers - Being harassed by numerous hummingbirds.
White-crowned Sparrows
Dark-eyed Juncos
Pine Siskins
Red-breasted Nuthatches
Red-crowned Kinglets
Pacific Wrens
Pale Swallowtails