Drops-of-gold, Hooker Fairy-bell, Hooker's Fairybells, Oregon Drops-of-gold, Oregon Fairy Bells: Prosartes hookeri (Synonyms: Disporum hookeri, Disporum hookeri var. hookeri, Disporum hookeri var. oreganum, Disporum hookeri var. parviflorum, Disporum hookeri var. trachyandrum, Disporum oreganum, Disporum parvifolium, Disporum trachyandrum, Prosartes hookeri var. oregana) - Tepals flare outwards from the middle of the tepal.
Fairy Lanterns, Largeflower Fairybells, Smith's Fairybells: Prosartes smithii (Synonyms: Disporum smithii, Prosartes menziesii, Uvularia smithii) - Tepals straight, not flaring outwards at the tip.