The
photo at right shows a close-up of the flower of prairie violet Viola nuttallii
as seen at Stacker Butte, May 1, 2005.
* Oregon White Oak: Quercus garryana var. garryana - Beginning bloom at all elevations.
* Taper-tipped Onion: Allium accuminatum- Many with well-formed buds.
* Bicolored Harvest Lily: Brodiaea howellii var. howellii - In bloom but going out of bloom at lower elevations.
Pale-anthered Glacier Lily: Erythronium grandiflorum var. pallidum - Pods are developing.
Yellow Bells: Fritillaria pudica- Pods well-developed.
* False Solomon Seal: Maianthemum racemosum ssp. amplexicaule - In bloom only amongst the shrubs on the upper slopes of the north side of the summit.
* Heart-leaf Buckwheat (both the yellow and white forms): Eriogonum compositum var. compositum - Both white- and yellow-flowered forms beginning to bloom.
* Scabland Wild Buckwheat: Eriogonum sphaerocephalum var. sublineare - Many with bright reddish flower buds and a few in bloom.
Barestem Buckwheat: Eriogonum nudum - A few with the flower stems elongating up to 30-40 cm high.
* Lance-leaf Spring Beauty: Claytonia lanceolata - A few still in bloom on the uppermost, north-facing slopes.
* Miner's Lettuce: Claytonia perfoliata
* Bitterroot: Lewisia rediviva
* Pale Montia: Montia exigua (M. spathulata) - In full bloom.
* Line-leaf Montia: Montia linearis - A few in bloom at the pond on the summit ridge.
Franklin's Sandwort: Arenaria franklinii var. franklinii - Still in bud.
* Jagged Chickweed: Holosteum umbellatum - A number in bloom along the summit ridge.
* Chickweed: Stellaria media - A few in bloom.
* Upland Larkspur: Delphinium nuttallianum - Mostly in bloom on the uppermost slopes.
* Sickle-pod Rock Cress: Boechera atrorubens - Both in bloom and with well-developed fruits.
* Oaks Toothwort: Cardamine nuttallii - A few in bloom within the oak forest.
Douglas' Draba: Cusickiella douglasii - Leaves only, past bloom.
* Scale Pod: Idahoa scapigera -Some still in bloom and with pods at Stacker Butte .
* Dagger Pod: Phoenicaulis cheiranthoides - Fairly good bloom still at the uppermost elevations.
* Jim Hill Mustard: Sisymbrium altissimum - A few present and in bloom.
* Fringe Pod: Thysanocarpus curvipes - A few in bloom with lots of ripe seed pods.
* Shining Oregon Grape: Berberis aquifolium - Blooming in the oak forest.
Lance-leaf Stonecrop: Sedum lanceolatum - Flower buds forming.
Leiberg's Stonecrop: Sedum leibergii - Flower buds forming.
* Bulblet Prairie Star: Lithophragma bulbifera (Now included as part of Lithophragma glabrum) - A few in bloom on north-facing slopes at the highest elevations.
* Small-flowerd Prairie Star: Lithophragma parviflorum
* Northwestern Saxifrage: Micranthes integrifolia - A few still in bloom on north-facing slopes at the uppermost elevations.
* Old Man's Whiskers: Geum triflorum - A few in bloom at the uppermost elevations.
* Serviceberry: Amelanchier alnifolia - Beginning to bloom.
* Bittercherry: Prunus emarginata var. emarginata - Beginning bloom at the highest elevations, especially at the tops of north-facing slopes.
Chokecherry: Prunus virginiana var. melanocarpa - A few in bud on north-facing slopes along the highest ridges.
* Woolly-pod Milk-vetch: Astragalus purshii - Several plants with a flower or two still in bloom at the higher elevations.
* Yakima Milk-vetch: Astragalus reventiformis - In sparse bloom at all elevations.
* Columbia Gorge Broad-leaf Lupine: Lupinus latifolius var. latifolius (formerly var. thompsonianus) - Sparse bloom this year.
* Spurred Lupine: Lupinus arbustus - A few in bloom.
* Whitish Lupine: Lupinus sulphureus var. bingenensis - A few in bloom.
* Stony Ground Lupine: Lupinus polyphyllus var. saxosus - See photo below as well as the link to the left for more photos.
* Big-head Clover: Trifolium macrocephalum - (bloomed out below, but still a good bloom near the summit)
* Filaree: Erodium cicutarium
* Prairie Violet: Viola nuttallii var. praemorsa - A few in bloom on north-facing slopes at the uppermost elevations.
* Chervil: Anthriscus scandicina - A few small plants in bloom.
* Fern-leaved Desert Parsley: Lomatium dissectum (var. ?) - Begining bloom in the oak forest above.
Butterfly-loving (Pungent) Desert Parsley: Lomatium papilioniferum
* Gray-leaf Desert Parsley: Lomatium macrocarpum - White flowered form, a few still in fading bloom at the summit of Stacker Butte.
* Bare-stem Desert Parsley: Lomatium nudicaule - Common bloom.
* Nine-leaf Desert Parsley: Lomatium triternatum var. triternatum
Watson's Desert Parsley: Lomatium watsonii - Only in seed.
* Desert Shooting Star: Dodecatheon conjugens - A few plants still in bloom on north-facing slopes at the uppermost elevations.
* Columbia Frasera: Frasera albicaulis var. nitida - In bud.
* Midget Phlox: Microsteris gracilis - A few in bloom.
* Hood's Phlox: Phlox hoodii- Moderate bloom above.
* Showy Phlox: Phlox speciosa- Moderate bloom.
* Ball-head Waterleaf: Hydrophyllum capitatum var. thompsonii - A few in bloom only in the oak forest on the north side of the Columbia Hills.
* Woods Nemophila: Nemophila parviflora - Beginning to bloom in the oak woods.
* Varied-leaf Phacelia: Phacelia heterophylla
* Fiddleneck: Amsinckia retrorsa-
* Weak-stem Cryptantha: Cryptantha flaccida - A few in bloom.
* Common Cryptantha: Cryptantha intermedia
* Puccoon: Lithospermum ruderale
* Small-flowered Forget-me-not: Myosotis stricta
* Harsh Paintbrush: Castilleja hispida (var. ?) - Brilliant, massed bloom in scattered locations.
* Small-flowered Blue-eyed Mary: Collinsia parviflora - Fairly abundant in the oak forest.
Gairdner's Penstemon: Penstemon gairdneri var. gairdneri - A number of plants at very scattered locations in bud.
Glandular Penstemon: Penstemon glandulosa (var. ?) - Plants up to 40 cm high along the north edge of the summit.
* Naked Broomrape: Aphyllon purpureum - In bloom only at the summit.
* Annual Bedstraw: Galium aparine
* White Plectritis: Plectritis macrocera - Fading out except on north-facing slopes.
* Yarrow: Achillea millefolium - Nearing bloom at mid-slope.
* Annual Agoseris: Agoseris heterophylla
* Low Pussytoes: Antennaria dimorpha
* Heart-leaf Arnica: Arnica cordifolia - A few beginning to bloom.
* Carey's Hybrid Balsamroot: Balsamhoriza careyana x deltoidea
* Hoary False Yarrow: Chaenactis douglasii var. douglasii -
Western Hawksbeard: Crepis occidentalis -
* Gold Stars: Crocidium multicaule - A few in bloom only at the summit.
* Yellow Desert Daisy: Erigeron linearis - A few beginning to bloom.
* Woolly Sunflower: Eriophyllum lanatum var. integrifolium - Several in bloom near the summit.
Little Sunflower: Helianthella uniflora - Some plants in bud (about 40 cm high) on steep slopes about 100 meters east of the radio direction finder.
* False Agoseris: Nothocalais troximoides - A few still in bloom at the summit.
* Yellow Western Groundsel: Senecio integerrimus var. exaltus - Beginning bloom.
* Common Dandylion: Taraxacum officinale - A few in bloom along the road or in very disturbed places.
1. Ravens
2. Horned Larks
3. Meadow Lark
6. Swifts
7. Hummingbird
8. Two Red-tailed Hawks
9. Prairie Falcon
11. Rattlesnake
12. Mule Deer