[Wildflower Bloom in Central and Eastern Oregon: 2011]

Summit Prairie

Malheur National Forest

(includes vernally wet meadows, riparian areas, upland shrub-scrub and upland coniferous)

August 2, 2011

Dwarf Larkspur: Delphinium depauperatum

Dwarf Larkspur: Delphinium depauperatum

The plants are derived primarily from observations from along FS Road #16 as most of Summit Prairie is private.
* indicates wildflowers currently in bloom.

Comprehensive Plant List for Summit Prairie

Lodgepole Pine: Pinus contorta var. latifolia

Mountain Alder: Alnus incana ssp. tenuifolia

Coyote Willow: Salix exigua ssp. exigua ?

Field Horsetail: Equisetum arvense

* Baltic Rush: Juncus balticus ?

Daggerleaf Rush: Juncus ensifolius

Woodrush: Field Woodrush: Luzula campestris or Common Woodrush: L. multiflora ssp. multiflora

* Ample-leaved Sedge: Carex amplifolia

* Water Sedge: Carex aquatilis var. aquatilis

* Awned Sedge: Carex atherodes

Elk Sedge: Carex geyeri

* Nebraska Sedge: Carex nebrascensis

* Veined Sedge: Carex neurophora

* Thick-headed Sedge: Carex pachystachya

* Needle Spikerush: Eleocharis acicularis

* Spikerush: Eleocharis sp.

* Meadow Foxtail: Alopecurus (pratensis ?)

* Smooth Brome: Bromus inermis ?

Orchard Grass: Dactylis glomerata

* Tufted Hairgrass: Deschampsia cespitosa

* Bottlebrush Squirreltail: Elymus elymoides

* Bigpod Mariposa: Calochortus eurycarpus - Fading out of bloom around the upper edges of the meadow.

Star-flowered False Solomon's Seal: Maianthemum stellatum ?

* Hyacinth Cluster Lily: Triteleia hyacinthina - Still blooming in moist sedge meadows in the west portion of the valley.

* Long-spurred Bog Orchid: Platanthera dilatata var. leucostachys

Different-leaved Water-starwort: Callitriche (heterophylla ?) - Seen along streams at the wildlife viewing area.

American Bistort: Bistorta bistortoides - Past bloom.

* Parsnipflower Buckwheat: Eriogonum heracleoides var. heracleoides

Prostrate Knotweed: Polygonum aviculare

* Douglas' Knotweed: Polygonum douglasii

* Closeflowered Knotweed: Polygonum polygaloides ssp. confertiflorum

* Kellogg's Knotweed: Polygonum polygaloides (ssp. kelloggii ?)

* Sheep Sorrel: Rumex acetosella

Curly Dock: Rumex crispus - Fruits maturing.

Mountain Sorrel: Rumex paucifolius ?

Pigweed: Chenopodium album ? - Young plants.

Red Miner's Lettuce: Claytonia rubra ssp. rubra - Past bloom.

Water Montia: Montia chamissoi - Past bloom.

Lineleaf Montia: Montia linearis - Past bloom.

Sticky Chickweed: Cerastium glomeratum ? - Past bloom.

* Menzie's Catchfly: Silene menziesii - Fading out of bloom.

* Longstalk Starwort: Stellaria longipes ssp. longipes ? (or S. longifolia?)

* Dwarf Larkspur: Delphinium depauperatum - Fading out of bloom.

* White Water Buttercup: Ranunculus aquatilis (var. diffusus ?)

* Large-flowered Swamp Buttercup: Ranunculus orthorhynchus var. platyphyllus

* Sticky Cutleaf Tansymustard: Descurainia incisa ssp. viscosa - Fading out of bloom except in wet places.

Bog Saxifrage: Saxifraga oregana - Past bloom.

Wax Currant: Ribes cereum var. cereum - Berries forming.

Broadpetal Strawberry: Fragaria virginiana spp. platypetala

Rydberg's Largeleaf Avens: Geum macrophyllum var. perincisum

Prairie Smoke: Geum triflorum var. ciliatum

* Elmer's Cinquefoil: Potentilla gracilis var. elmeri

Pearhip Rose: Rosa woodsii var. ultramontana - Fruits maturing

* Annual Burnet: Sanguisorba occidentalis

* Birdsfoot Trefoil: Lotus corniculatus

* Velvet Lupine: Lupinus leucophyllus - Fading out of bloom.

* Cup Clover: Trifolium cyathiferum

* Least Hop Clover: Trifolium dubium

* Hansen's Clover: Trifolium longipes var. hansenii - Fading out of bloom except in the wettest meadows.

* Red Clover: Trifolium pratense

* White Clover: Trifolium repens

* Oregon Checkermallow: Sidalcea oregana

* Tinker's Penny: Hypericum anagalloides

Fireweed: Chamerion angustifolium

* Annual Willowherb: Epilobium brachycarpum - Beginning to bloom.

* Purple-leaved Willowherb: Epilobium ciliatum var. ciliatum ?

* Bolander's Yampah: Perideridia bolanderi ssp. bolanderi

Pinemat Manzanita: Arctostaphylos nevadensis

* Field Bindweed: Convolvulus arevensis

Pleated Gentian: Gentiana affinis

Narrowleaf Collomia: Collomia linearis

* Prickly Navarretia: Navarretia intertexta var. propinqua - Fading out of bloom.

Harkness' Linanthus: Linanthus harknessii - In bud.

Meadow Nemophila: Nemophila pedunculata

* Purple Phacelia: Phacelia hastata var. alpinum - Fading out of bloom.

* Small-flowered Fiddleneck: Amsinckia menziesii var. menziesii

* Cryptanth: Cryptantha sp. - Tiny flowers.

* Smaller Forget-me-not: Myosotis laxa

* Eastside Popcornflower: Plagiobothrys hispidulus

Field Mint: Mentha canadensis (M. arvense)

* Selfheal: Prunella vulgaris var. lanceolata

* Narrowleaf Skullcap: Scutellaria angustifolia (var. ?)

* Cusick's Paintbrush: Castilleja cusickii - Fading out of bloom.

* Slender Indian Paintbrush: Castilleja gracillima - Fading out of bloom.

* Annual White Paintbrush: Castilleja tenuis - Still in bloom along streams at the wildlife viewing area.

Dalmatian Toadflax: Linaria dalmatica

* Common Monkeyflower: Mimulus guttatus - Fading out of bloom.

Musk Monkeyflower: Mimulus moschatus

Elephant Heads: Pedicularis groenlandica - Going to seed.

* American Brooklime: Veronica americana

Purslane Speedwell: Veronica peregrina var. xalpensis

* English Plantain: Plantago lanceolata

* Yarrow: Achillea millefolium

* Orange Agoseris: Agoseris aurantiaca

Pale Agoseris: Agoseris glauca var. glauca - Basal rosettes of leaves.

* Large-flowered Agoseris: Agoseris grandiflora - Fading out of bloom.

* Field Pussytoes: Antennaria howellii ssp. neodioica

* Leafy Arnica: Arnica chamissonis ssp. foliosa

* Green Rabbitbrush: Chrysothamnus viscidiflorus (ssp. ?) - Beginning to bloom.

* Chicory: Cichorum intybus

* Canada Thistle: Cirsium arvense

Elk Thistle: Cirsium scariosum - Past bloom.

Bull Thistle: Cirsium vulgare - In bud.

* Showy Fleabane: Erigeron speciosus

* Woolly Sunflower: Eriophyllum lanatum (var.integrifolium ?)

Marsh Cudweed: Gnaphalium palustre

* White-flowered Hawkweed: Hieracium albiflorum

* Mountain Tarweed: Madia glomerata

Sweet Marsh Butterweed: Senecio hydrophiloides ? - Past bloom.

* Tall Butterweed: Senecio serra

* Rocky Mountain Goldenrod: Solidago lepida var. salebrosa

* Leafy Aster: Symphyotrichum foliaceum var. parryi

* Western Mountain Aster: Symphyotrichum spathulatum var. spathulatum - Beginning to bloom.

* Common Dandelion: Taraxacum officinale

Yellow Salsify: Tragopogon dubius


Animals Observed in the Logan Valley Area:

Red Squirrels

Beldings Ground Squirrels

Chipmunk

Voles

Red-tailed Hawk

Clarks Nutcracker

Stellers Jay

Robins

Killdeer pair - nesting?

Pale Tiger Swallowtail

Wood Nymphs

Fritillarys

Mourning Cloak

Milbert's Tortoiseshells

West Coast Ladys

Parnassian

Sulfurs

Whites

Small Blue Damselflies

Large Bumblebees

Small Bumblebees

Lady Bugs

Mosquitos - Bothersome at times.


Paul Slichter