| Taxon | Cirsium scariosum var. loncholepis |
| group | Eudicots |
| Family | Asteraceae |
| Family common name(s) | composite; composita; comp; aster; asterwort; asterworts; sunflower; daisy; dandelion |
| Genus common name(s) | cirsium; thistle; true thistle; plume thistle; plume-thistle |
| Species common name(s) | scarious thistle; scarious meadow thistle; western meadow thistle; scarious elk thistle; bird's-nest thistle; bird's nest thistle; birds-nest thistle; birds nest thistle; bird nest thistle; birdnest thistle |
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| Common name(s) generally applied to other taxa or multiple taxa | meadow thistle, elk thistle, dwarf thistle are applied to multiple Cirsium taxa; giant thistle is applied to multiple Asteraceae taxa |
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| Synonymy: The Jepson Manual (1993), FNA, PLANTS, etc | Cirsium loncholepis Petr.; Cirsium scariosum Nutt. var. citrinum (Petr.) D.J. Keil, in part |
