Heterotheca sessiliflora var. bolanderioides

Heterotheca sessiliflora var. bolanderioides Semple is serpentine soil endemic to the hill tops around San Francisco Bay.  It is a member of subsp. echioides and is the only tetraploid taxon in the species.

Heterotheca sessiliflora ssp. bolanderi, Semple 1996

Last update 19 May 2023 by J.C. Semple

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