CCDBAngiospermsCompositaeHeterothecaHeterotheca sessiliflora var. echioides (Benth.) Semple

3 chromosome counts in Heterotheca sessiliflora var. echioides (Benth.) Semple:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Heterotheca sessiliflora var. echioides (Benth.) Semple Heterotheca sessiliflora subsp. echioides (Benth.) Semple 9II(1)   Asteracea Semple et al. 2001 Rhodora
!   Heterotheca sessiliflora var. echioides (Benth.) Semple Heterotheca sessiliflora subsp. echioides (Benth.) Semple   18(1) Asteracea Semple 2008 Botany
  Heterotheca sessiliflora var. echioides (Benth.) Semple Heterotheca sessiliflora subsp. echioides (Benth.) Semple 9II   IPCN online Semple, J. C., C. Xiang, J. Zhang, M. Horsburgh & R. Cook. 2001. Chromosme number determinations in Fam. Compositae, tribe Astereae. VI. Western North American taxa and comments on generic treatments of North American asters. Rhodora 103: 202–218.