| Name | Hazardia squarrosa (Hooker & Arnott) Greene |
| Authorship | (Hooker & Arnott) Greene |
| Rank | Species |
| Placed in | Hazardia |
| Contains | Hazardia squarrosa var. grindelioides (de Candolle) W. D. Clark Hazardia squarrosa var. obtusa (Greene) Jepson |
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Hazardia squarrosa (Hooker & Arnott) Greene |
| Identification made in | [no date] (11), 1976 (5) |
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