Note: The small popcornflowers derived from the Plagiobothrys scouleri of the original "Flora of the Pacific Northwest" are difficult to distinguish from each other without looking at the nutlets (fruits), so my photos of those small species may be mis-identified.
Matted Popcorn Flower: Plagiobothrys cusickii (Synonyms: Allocarya cusickii, Plagiobothrys scouleri var. cusickii, Plagiobothrys scouleri var. penicillatus) -
Fragrant Allocarya, Fragrant Plagiobothrys, Fragrant Popcornflower, Fragrant Popcorn Flower: Plagiobothrys figuratus (Synonyms: Allocarya figurata,Plagiobothrys figuratus ssp. figuratus, Plagiobothrys figuratus var. figuratus, Plagiobothrys hirtus var. figuratus) -
Harsh Plagiobothrys, Scouler's Popcorn-flower: Plagiobothrys hispidulus (Synonyms: Allocarya hispidula, Plagiobothrys scouleri var. hispidulus) -
Scouler's Popcornflower, Scouler's Popcorn Flower: Plagiobothrys scouleri (Synonyms: Allocarya granulata, Allocarya scouleri, Plagiobothrys granulatus, Plagiobothrys scouleri var. scouleri) -
Pacific Popcorn Flower, Slender Popcornflower, Slender Popcorn Flower: Plagiobothrys tenellus (Synonym: Plagiobothrys asper) -