Beautiful Stickseed: Hackelia bella -
California Stickseed: Hackelia californica -
Gray Stickseed: Hackelia cinerea -
Sagebrush Stickseed, Steppe Stickseed: Hackelia diffusa var. arida (Synonym: Hackelia arida) -
Cotton's Stickseed, Creamy Stickseed, Spreading Stickseed: Hackelia diffusa var. cottonii -
Diffuse Stickseed, Spreading Stickseed: Hackelia diffusa var. diffusa (Synonym: Hackelia saxatilis) -
Many-flowered Stickseed: Hackelia floribunda -
Blue Stickseed, Jessica Sticktight, Meadow Forget-me-not: Hackelia micrantha (Synonyms: Hackelia jessicae, Lappula micrantha) -
Taylor's Stickseed: Hackelia taylorii -
Lesser Showy Stickseed: Hackelia venusta -