[The Sunflower Family in the Columbia River Gorge of Oregon and Washington]

The Sunflower Family in the Columbia River Gorge of Oregon and Washington

Wildflowers with Daisy-like Wildflower Heads

Asteraceae

Cushion Fleabane: Erigeron poliospermus var. poliospermus
Members of the Sunflower Family with Flowers like Daisies or Sunflowers:
or
Flowers consist of a central disc of small, short petaled flowers often tightly packed together surrounded by a ring of longer petaled flowers. The longer, outside flowers may be white, yellow, pink, blue, or lavender.

Wildflowers of the Genus Achillea: The Yarrows

Yarrow: Achillea millefolium - The leaves are narrow, divided into numerous, very short, very dissect leaflets. The inflorescence is a flat-topped cluster. Individual flower heads have several white disk flowers surrounded by several broad, rounded white petals. The stems are covered with white, cottony hairs. It may have an unpleasant odor.

Wildflowers of the Genus Anthemis: The Chamomiles

Wildflowers of the Genus Arnica:

Meadow Arnica: Arnica chamissonis

Heartleaf Arnica: Arnica cordifolia

Rayless Arnica: Arnica discoidea - No ray flowers.

Sticky-leaf Arnica: Arnica diversifolia

Hillside Arnica: Arnica fulgens

Streambank Arnica: Arnica lanceolata ssp. prima

Mountain Arnica: Arnica latifolia

Hairy Arnica: Arnica mollis

Rydberg's Arnica: Arnica rydgergii

Foothills Arnica: Arnica sororia

Wildflowers of the Genera Canadanthus, Eucephalus, Eurybia, Oreostemma, Seriocarpus and Symphyotrichum:

Great Northern Aster: Canadanthus modestus

Klickitat Aster: Eucephalus glaucescens

Cascade Aster: Eucephalus ledophyllus var. ledophyllus

Rough-leaf Aster: Eurybia radulina

Alpine Aster: Oreostemma alpigenum var. alpigenum

Oregon White-top Aster: Sericocarpus oregonensis ssp. oregonensis

Rigid White-topped Aster: Sericocarpus rigidus

Long-leaved Aster: Symphyotrichum ascendens

Eaton's Aster: Symphyotrichum bracteolatum

Western Meadow Aster: Symphyotrichum campestre

Rayless Annual Aster: Symphyotrichum ciliatum

Tufted White Prairie Aster: Symphyotrichum ericoides var. pansum

Leafybract Aster: Symphotrichum foliaceum var. parryi

Alkali Aster: Symphyotrichum frondosum

Hall's Aster: Symphyotrichum hallii

English Aster: Symphyotrichum novae-angliae

Western Aster: Symphotrichum spathulatum var. intermedium

Western Aster: Symphyotrichum spathulatum var. spathulatum

Douglas' Aster: Symphotrichum subspicatum var. subspicatum

Wildflowers of the Genus Balsamorhiza: The Balsamroots

Carey's Balsamroot: Balsamorhiza careyana

Northwest Balsamroot: Balsamhoriza deltoidea

Hooker's Balsamroot: Balsamorhiza hookeri

Arrow-leaf Balsamroot: Balsamhoriza sagittata

Serrate Balsamroot: Balsamorhiza serrata

Wildflowers of the Genus Bidens: The Beggar Ticks

Nodding Beggar Ticks: Bidens cernua

Swamp Beggar-ticks: Bidens connata

Devil's Pitchfork: Bidens frondosa

Three-lobed Beggarticks: Bidens tripartita

Western Sticktight: Bidens vulgata

Wildflowers of the Genus Chrysopsis: The Goldasters

Hairy Goldaster: Chrysopsis villosa - An upright to sprawling plant of sandy areas. Sometimes weedy. The leaves and stems are abundantly hairy. The flower heads are like yellow daisies.

Wildflowers of the Genus Columbiadoria:

Columbia River Daisy, Hall's Columbiadoria, Hall's Goldenweed: Columbiadoria hallii (Synonyms: Haplopappus hallii, Hesperodoria hallii)

Wildflowers of the Genus Conyza:

Horseweed, Canada Fleabane, Canadian Fleabane: Conyza canadensis - This species may have very short, white rays or may essentially be rayless.

Wildflowers of the Genus Coreopsis:

Calliopsis, Columbia Coreopsis, Golden Tickseed: Coreopsis tinctoria)var. atkinsoniana (Synonyms: Coreopsis atkinsoniana, Coreopsis tinctoria var. tinctoria) - Erect wildflowers to 2-3 feet tall. Flowers broad, showy, with yellow ray flowers that may be orangish at base. Leaves pinnatifid or bipinnatifid, linear. Flowers, stems, and leaves are hairless.

Wildflowers of the Genus Crocidium: The Gold Stars

Gold Stars/ Spring Gold: Crocidium multicaule - Low growing wildflowers to 8 inches tall. Small dime-sized flower heads with yellow central disks and 8-13 yellow ray flowers. Spatulate basal leaves with alternate, thin stem leaves with scattered tufts of woolly hairs.

Wildflowers of the Genus Dieteria:

Hoary Aster: Dieteria canescens var. canescens (Synonyms: Aster danescens, Aster shastensis var. glossophyllus, Aster shastensis var. latifolius)

Hoary Aster, Tall Hoary Aster: Dieteria canescens var. incana

Wildflowers of the Genus Erigeron: The Fleabanes or Daisies

Bitter Fleabane: Erigeron acris var. kamtschaticus

Annual Fleabane: Erigeron annuus

Cut-leaved Daisy: Erigeron compositus

Spreading Fleabane: Erigeron divergens

Thread-leaf Fleabane: Erigeron filifolius

Foreign Daisy: Erigeron glacialis var. glacialis

Howell's Daisy: Erigeron howellii

Unadorned Fleabane: Erigeron inornatus var. inornatus - Rayless.

Yellow Desert Daisy: Erigeron linearis

Columbia Gorge Daisy: Erigeron oreganus

Pink Fleabane: Erigeron philadelphicus

Cushion Fleabane: Erigeron poliospermus var. poliospermus

Showy Fleabane: Erigeron speciosus

Branching Daisy: Erigeron strigosus

Wildflowers of the Genus Eriophyllum: The Woolly Sunflowers

Oregon Sunshine/ Woolly Sunflower: Eriophyllum lanatum - Numerous flower heads, each with a dime-sized yellow central disk surrounded by 8-14 yellow ray flowers. The upper stem leaves are linear, but the lower leaves are pinnately dissected. The leaves and stems are covered with gray, woolly hairs. A common plant of drier, often rocky slopes.

Wildflowers of the Genus Euthamia: Goldenrod

Western Goldenrod: Euthamia occidentalis

Wildflowers of the Genus Gaillardia: The Blanket Flowers

Blanket Flower, Common Gaillardia, Great-flowered Gaillardia: Gaillardia aristata - Large flower heads with about 10 yellow, staghorn or 3-forked rays surrounding a red dome of disk flowers. Leaves linear with short pairs of projecting lobes. 1-2 feet tall.

Wildflowers of the Genus Grindelia: The Gumweeds

Columbia Gumplant, Columbia Gumweed: Grindelia nana var. discoidea - Generally lacking ray flowers.

Idaho Gumweed, Low Gumweed: Grindelia nana var. nana (Synonyms: Grindelia hirsutula, Grindelia nana var. integerrima, Grindelia nana var. integrifolia, Grindelia nana ssp. nana, Grindelia squarrosa var. integrifolia ): Smooth-leaved and -stemmed perennial to 80 cm in height. Flower-heads with yellow rays and disk flowers. Plant is not very resinous. Involucral bracts with reflexed, almost hook-like tips. A plant of dry open places.

Wildflowers of the Genus Gutierrezia: Matchbrush

Matchbrush: Gutierrezia sarothrae

Wildflowers of the Genus Helenium: The Sneezeweeds

Common Sneezeweed, Large-flowered Sneezeweed, Mountain Sneezeweed, Sneezeweed: Helenium autumnale (Synonyms: Helenium autumnale var. autumnale, Helenium autumnale var. grandiflorum, Helenium autumnale var. montanum)

Wildflowers of the Genus Helianthella:

Little Sunflower: Helianthella uniflora

Wildflowers of the Genus Helianthus: The Sunflowers

Common Sunflower: Helianthus annuus

Cusick's Sunflower: Helianthus cusickii

Prairie Sunflower: Helianthus petiolaris

Least Tarweed, Smallhead Tarweed, Small-head Tarweed: Hemizonella minima

Wildflowers of the Genus Lagophylla:

Rabbit Leaf: Lagophylla ramosissima

Wildflowers of the Genus Layia: The Tidy-tips

Whitedaisy Tidytips, White Daisy Tidytips, White Layia: Layia glandulosa (Synonyms: Layia glandulosa ssp. glandulosa, Layia glandulosa ssp. lutea) - Flower heads with white, antler or 3-forked rays, and a globose, yellow central disk. Leaves linear to lobed.

Wildflowers of the Genus Leucanthemum:

Oxeye Daisy, Ox-eye Daisy: Synonyms: Leucanthemum vulgare (Synonyms: Chrysanthemum leucanthemum, Chrysanthemum leucanthemum var. pinnatifidum) - An erect plant with stout stems. The leaves are pinnatifid. The large, showy flower heads are at the apex of the stems, with long white rays surrounding a broad yellow disk.

Feverfew: Chrysanthemum parthenium

Wildflowers of the Genus Madia: The Tarweeds

Small-head Tarweed: Hemizonella minima

Lemon-scented Tarweed: Madia citriodora

Little Tarweed: Madia exigua

Stinking Tarweed: Madia glomerata

Common Tarweed: Madia gracilis

Coast Tarweed: Madia sativa

Wildflowers of the Genus Nestotus: Goldenweeds

Narrowleaf Goldenweed, Narrowleaf Mock Goldenweed: Nestotus stenophyllus (Synonyms: Haplopappus stenophyllus, Stenotus stenophyllus)

Wildflowers of the Genus Rigiopappus: Bristleheads or Wireweeds

Bristlehead, Bristle Head, Wireweed: Rigiopappus leptocladus

Wildflowers of the Genus Senecio: The Butterweeds and Groundsels

Bolander's Butterweed: Packera bolanderi var. harfordii

Streambank Butterweed: Packera pseudaurea var. pseudaurea

Alpine Meadow Groundsel: Packera streptanthifolia

Sweet Marsh Groundsel: Senecio hydrophiloides

Great Swamp Groundsel: Senecio hydrophilus

Western Groundsel: Senecio integerrimus var. exaltatus

White Western Groundsel: Senecio integerrimus var. ochroleucus

Tansy Ragwort: Senecio jacobaea

Tall Ragwort: Senecio serra var. serra

Woods Groundsel: Senecio sylvaticus

Arrow-leaf Groundsel: Senecio triangularis

Common Butterweed: Senecio vulgaris - Flowers all discoid.

Wildflowers of the Genus Solidago: The Goldenrods

Western Goldenrod: Euthamia occidentalis

West Coast Goldenrod: Solidago elongata

Giant Goldenrod, Late Goldenrod: Solidago gigantea

Meadow Goldenrod, Canada Goldenrod: Solidago lepida var. salebrosa

Missouri Goldenrod: Solidago missouriensis

Little Goldenrod, Sticky Goldenrod: Solidago simplex var. simplex (S. spathulata var. neomexicana)

Wildflowers of the Genus Tanacetum:

Featherfew, Feather-few, Feverfew, Fever-few: Tanacetum parthenium (Synonym: Chrysanthemum parthenium)

Wildflowers of the Genus Wyethia: The Mule's Ears

Northern Wyethia/ Mule's Ears: Wyethia amplexicaulis

Narrow-leaf Mule's-ears: Wyethia angustifolia


Paul Slichter E-mail