[Wildflower Bloom in Central and Eastern Oregon: 2016]

Wildflowers of Hot Springs Campground

Includes Wildflowers Along the Riparian Areas and Upland Slopes out to about 200 Meters Away from the Campground

Hart Mountain National Antelope Refuge

June 9-12, 2016

The Rock Creek drainage viewed upstream towards Barnhardi Basin and Warner Peak (with snow patches) from a small hill above the south side of Hot Springs Campground, Hart Mountain National Antelope Refuge........June 9, 2016.

The Rock Creek drainage viewed upstream towards Barnhardi Basin and Warner Peak (with snow patches) from atop a small hill above the south side of Hot Springs Campground, Hart Mountain National Antelope Refuge........June 9, 2016.

Directions: From the Hart Mountain National Antelope Refuge headquarters drive south on the gravelled road several miles to a signed y-junction, taking the right fork for Hot Springs Campground. Continue another mile or so, eventually descending into the campground. The first junction has an access road to the lower campground along Rock Creek plus access to the hot springs building. Continuing left from the first junction provides access to several campsites along a second road that heads south for about one-quarter mile along wooded Bond Creek, while continuing straight provides access to several campsites along both sides of the upper part of Rock Creek in the campground. Campsites are generally primitive with fire rings (bring your own wood), while only a few sites may have picnic tables. Three vault toilets are scattered around the campground. Potable water is not available at the campground, so either bring your own or obtain it at a signed faucet along one of the shop buildings at the refuge headquarters. The water in the hot springs is slightly below body temperature. There are several routes for hiking along jeep trails or cross country from the campground, although these are not signed.

Note: Mosquitoes and no see-ums can be numerous from mid-June to late July and ticks are often present. Rattlesnakes are occasionally present as well. The campground is patrolled several times a day by park staff or campground hosts.

Weather: Temperatures during this visit ranged from highs in the 50s to low 70s with lows from freezing to the low 50s. A breeze generally came up every afternoon while winds died down overnight.

* indicates the wildflower is currently in bloom.

Western Juniper: Juniperus occidentalis

Quaking Aspen: Populus tremuloides

Coyote Willow: Salix exigua

* Douglas' Sedge: Carex douglasii

* Lemmon's Needlegrass: Achnatherum lemmonii ssp. lemmonii

Meadow Foxtail: Alopecurus pratensis

* Cheatgrass: Bromus tectorum

* Needle and Thread Grass: Heterostipa comata

Prairie Junegrass: Koeleria macrantha - In bud.

* Great Basin Wild Rye: Leymus cinereus - Beginning to bloom.

* Bulbous Bluegrass: Poa bulbosa

Stinging Nettles: Urtica dioica ssp. dioica

* Tapertip Onion: Allium accuminatum

Star-flowered False Solomon Seal: Maianthemum stellatum

California False-hellebore: Veratrum californicum var. californicum

* Western Blue Flag: Iris missouriensis

* Western Blue-eyed Grass: Sisyrinchium idahoense var. occidentale

* Parsnipflower Buckwheat: Eriogonum heracleoides var. heracleoides

* Goose Lake Wild Buckheat: Eriogonum strictum var. anserinum

* Modoc Sulfur Flower Buckwheat: Eriogonum umbellatum var. modocense

Prostrate Knotweed: Polygonum aviculare

* Curly Dock: Rumex crispus

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

Hornseed Buttercup: Ranunculus testiculatus - Going to seed.

* Little Buttercup: Ranunculus uncinatus

* Brown's Peony: Paeonia brownii - Fading out of bloom.

* American Wintercress: Barbarea orthoceras

Sicklepod Rockcress: Boechera (sparsiflora ?)

Golden Currant: Ribes aureum

Wax Currant: Ribes cereum var. cereum

Mountain Mahogany: Cercocarpus ledifolius (var. intermontanus ?)

* Rydberg's Largeleaf Avens: Geum macrophyllum var. perincisum

* Graceful Cinquefoil: Potentilla gracilis var. fastigiata

* Antelope Bitterbrush: Purshia tridentata - Fading out of bloom.

* Pearhip Rose: Rosa woodsii var. ultramontana - Fading out of bloom.

* Filaree: Erodium cicutarium

* Western Blue Flax: Linum lewisii var. lewisii

* Oregon Checkermallow: Sidalcea oregana var. spicata

* Long-leaved Evening-primrose: Taraxia subacaulis

* Tansy-leaved Evening-primrose: Taraxia tanacetifolia

* Prickly Phlox: Linanthus pungens

* Purple Phacelia: Phacelia hastata var. alpina

* Common Houndstongue: Cynoglossum officinale

* Blue Stickseed: Hackelia micrantha

* Puccoon: Lithospermum ruderale

* Yellow and Blue Scorpionweed: Myosotis discolor

* Slender-branch Popcornflower: Plagiobothrys leptocladus

* Wavy-leaf Paintbrush: Castilleja applegatei var. pinetorum

* Mountain Snowberry: Symphoricarpos oreophilus

* Yarrow: Achillea millefolium - Beginning to bloom.

* Twin Arnica: Arnica sororia

Big Sagebrush: Artemisia tridentata ssp. tridentata

* Arrowleaf Balsamroot: Balsamorhiza sagittata

Hoary False Yarrow: Chaenactis douglasii var. douglasii

Canada Thistle: Cirsium arvense

* Elk Thistle: Cirsium scariosum var. americanum

Bull Thistle: Cirsium vulgare

* Shaggy Fleabane: Erigeron pumilus var. intermedius

* Yellow Desert Daisy: Erigeron linearis

* Woolly Groundsel: Packera cana

* Lanceleaf Goldenweed: Pyrrocoma lanceolata - Alkaline flats along Bond and Rock Creeks due south of the hot springs building.

* Sweet Marsh Butterweed: Senecio hydrophiloides

* Western Groundsel: Senecio integerrimus var. exaltatus

* Stemless Goldenweed: Stenotus acaulis

* Common Dandelion: Taraxacum officinale

Salsify: Tragopogon dubius

Animals Observed During This Hike:

Belding Ground Squirrels


Mule Deer



Red-tailed Hawks

Turkey Vultures

Northern Flickers

Flycatchers (ID undetermined)


Poor Wills


Mourning Dove

Black-headed Grosbeaks

American Robin

Western Tanagers

Brewer's Blackbirds

Red-winged Blackbirds

Western Meadowlarks

Green-tailed Towhees

Scrub Jay


Purple Finches

Warbling Vireos

Pine Siskin ?

House Wrens

Barn Swallow

Tree Swallows

Yellow Warbler


Hummingbird (Black-chinned female ?)




Pale Ochres

Western Swallowtails

Paul Slichter