Cirsium perplexans (Rydb.) Rydb. Fl. Rocky Mts. 1008 (1917).

Nomenclatural References

• literature : Fl. Rocky Mts. 1008. 1917 [31 Dec. 1917] BHL link from IPNI metadata.
• database : IPNI record: 195821-1
• database : The Plant List version 1.0, record: gcc-139257
• database : The Plant List version 1.1, record: gcc-139257