Members of the Sunflower with Flower Heads Like Daisies or Sunflowers

Yarrows: The Genus Achillea on Mt. Adams
Chamomile, Dogfennel, Corn Chamomile: Anthemis arvensis
Arnicas: The Genus Arnica on Mt. Adams
Asters: The Genus Aster on Mt. Adams
Balsamroots: The Genus Balsamorhiza on Mt. Adams
Nodding Beggars-tick: Bidens cernua
Hall's Goldenweed: Columbiadoria hallii (formerly Haplopappus hallii)
Horseweed: Conyza canadensis - This has flowerheads with rays absent or minute rays, so it might key here or with the flowerheads that are discoid.
Spring Gold: Crocidium multicaule -
Goldenweeds: The Genus Ericameria on Mt. Adams
Fleabanes: The Genus Erigeron on Mt. Adams
Woolly Sunflowrs: The Genus Eriophyllum on Mt. Adams
Blanket Flower: Gaillardia aristata
Low Gumweed: Grindelia nana var. integrifolia
Rocky Mt. Helianthella, Little Sunflower: The Genus Helianthella on Mt. Adams
Small Tarweed: Hemizonella minima (formerly Madia minima)
Alpengolds: The Genus Hulsea on Mt. Adams
Hareleaf, Rabbitleaf: Lagophylla ramosissima -
Oxeye Daisies: The Genus Leucanthemum on Mt. Adams
Tarweeds: The Genus Madia on Mt. Adams
Butterweeds & Groundsels: The Genus Senecio on Mt. Adams
Goldenrods: The Genus Solidago on Mt. Adams
Goldenweeds: The Genus Tonestus on Mt. Adams
Salsify: The Genus Tragopogon on Mt. Adams
Mule's-ears: The Genus Wyethia on Mt. Adams