Compositae source details
(1917). Beih. Bot. Centralbl. 35(2): 462 (1917)
309609
1917
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Cirsium breweri var. canescens Petr. accepted as Cirsium douglasii var. breweri (A.Gray) D.J.Keil & C.E.Turner (original description)
Cirsium breweri var. lanosissimum Petr. accepted as Cirsium douglasii var. breweri (A.Gray) D.J.Keil & C.E.Turner (original description)
Cirsium breweri var. lanosissimum Petr. accepted as Cirsium douglasii var. breweri (A.Gray) D.J.Keil & C.E.Turner (original description)
