East of the Cascade Mountains of Oregon and Washington

Alpine Collomia, Alpine Mountain Trumpet: Collomia debilis (Synonyms: Collomia debilis var. debilis, Collomia debilis var. integra, Collomia debilis var. ipomoea, Collomia debilis var. trifida, Collomia devilis var. typica) -

Large-flowered Collomia, Grand Collomia, Large-flower Mountain-trumpet: Collomia grandiflora -

Varied-leaf Collmia, Varied-leaf Mountain-trumpet: Collomia heterophylla -

Narrow-leaved Collomia, Tiny Trumpet, Narrow-leaf Mountain-trumpet: Collomia linearis -

Barren Valley Collomia: Collomia renacta -

Diffuse Collomia, Diffuse Mountain-trumpet: Collomia tenella -

Staining Collomia, Yellow-staining Collomia, Yellow-staining Mountain-trumpet: Collomia tinctoria -