Heterotheca stenophylla var. stenophylla

Heterotheca stenophylla var. stenophylla is the sparsely hairy and often densely glandular variety in the species.  It is diploid throughout its range with some tetraploids occurring mostly in the central portion of the range (Semple 2008).

Heterotheca stenophylla stenophylla Fig 34 Semple 1996

Last update 19 May 2023 by J.C. Semple

© 2023 J.C. Semple, including all photographs unless otherwise indicated