Taxonomic status: Synonym

homotypic synonyms:
Haplopappus spinulosus subsp. australis (Greene) H.M.Hall; Haplopappus spinulosus subsp. scabrellus (Greene) H.M.Hall; Haplopappus spinulosus var. scabrellus (Greene) S.F.Blake; Machaeranthera spinulosa (Greene) Cory;

protologue: : 24 (1899)
URL protologue: https://archive.org/stream/#page/24/mode/2up

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