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Heterotheca canescens

Heterotheca canescens (DC.) Shinners has silvery green leaves due to the high density of hairs.  The species is mostly diploid (2n=18) with  tetraploids (2n=36) occurring in the central part of the range.  See Semple (2006 FNA).

Heterotheca canescens Fig 36 Semple 1996

Last update 31 October 2013 by J.C. Semple

© 2013 J.C. Semple, including all photographs unless otherwise indicated