Daisy Type flowers

    Asters, daisies and fleabanes have few to many ray flowers surrounding a central area of tiny disk flowers.

Sunflower Type flowers

   Generally large yellow showy flowers with big "petals".

Lettuce Type flowers

    Only ray flowers ("petals") of various sizes. Dandelion is the most familiar of these.

Thistle Type flowers

    No ray flowers ("petals"), but many of the small disk flowers are quite elaborate and showy.

Shrubby (Sage, Rabbitbrush ... )

    Woody stems that overwinter. Can be small (few inches) or very large (>10 feet tall)

Tiny Heads

    Clusters of small heads, each containing many very small flowers. Often lack "petals" and are not showy.

Da..ed Yellow Composites (DYC)

   Many confusing types that amply justify the group name.

Miscellaneous

    Various odd-shaped flower heads that are hard to classify.

Daisy Type flowers

Aster, Bellis, Chaetopappa, Chrysanthemum, Conyza, Erigeron, Machaeranthera, Townsendia

Aster, Daisy, Chrysanthemum, Horseweed, Fleabane, Townsendia

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Sunflower Type flowers

Balsamorhiza, Helianthus, Helianthella, Viguiera, Wyethia

Balsamroot, Mule's Ears, Sunflower

Lettuce Type flowers

Agoseris, Cichorium, Crepis, Hieracium, Lactuca, Lygodesmia, Malacothrix, Microseris, Pyrrhopappus, Sonchus, Stephanomeria, Taraxacum, Tragopogon

Dandelion, Salsify, Lettuce, Chicory

Thistle Type flowers

Arctium, Centaurea, Cirsium, Onopordum, Xanthium

Thistle, Knapweed, Burdock

Shrubby (Sage, Rabbitbrush ... )

Artemisia, Chrysothamnus, Haplopappus, Gutierriezia

Sagebrush, Rabbitbrush, Goldenbush

Tiny Heads

Achillea, Ambrosia, Antennaria, Artemisia, Chaenactis

Yarrow, Dusty Maiden, Sage, Ragweed, Everlasting, Pussytoes

DYC

Arnica, Haplopappus, Hymenoxys, Senecio, Solidago

Arnica, Goldenweed, Groundsel, Goldenrod, Yellow Weed, Golden Weed, etc

Miscellaneous

Gaillardia, Rudbeckia, various odd ones

Blanketflowers, Coneflowers, oddities