CCDBAngiospermsCompositaeHeterothecaHeterotheca echioides (Benth.) Shinners

2 chromosome counts in Heterotheca echioides (Benth.) Shinners:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Heterotheca echioides (Benth.) Shinners Heterotheca sessiliflora subsp. echioides (Benth.) Semple 9II   IPCN online Semple, J. C. 1985. Chromosome number determinations in fam. Compositae tribe Astereae. Rhodora 87: 517–527.
  Heterotheca echioides (Benth.) Shinners Heterotheca sessiliflora subsp. echioides (Benth.) Semple 9II   IPCN online Keil, D. J., M. A. Luckow & D. J. Pinkava. 1988. Chromosome studies in Asteraceae from the United States, Mexico, the West Indies, and South America. Amer. J. Bot. 75: 652–668.