A new species, Haplopappus graniticus, is described and illustrated. Its relationships seemingly lie with section Tonestus but its narrow heads and imbricated phyllaries are anomalous in that section.
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Tiehm, A., Shultz, L.M. A new Haplopappus (Asteraceae: Astereae) from Nevada. Brittonia 37, 165–168 (1985). https://doi.org/10.2307/2806095