CCDBAngiospermsCompositaeHeleniumHelenium quadridentatum Labill.

4 chromosome counts in Helenium quadridentatum Labill.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Helenium quadridentatum Labill. Helenium quadridentatum Labill. 13(1)   Asteracea Watson 1973 Southw. Naturalist
  Helenium quadridentatum Labill. Helenium quadridentatum Labill. 13   IPCN online Keil, D. J. & T. F. Stuessy. 1977. Chromosome counts of Compositae from Mexico and the United States. Amer. J. Bot. 64: 791–798.
  Helenium quadridentatum Labill. Helenium quadridentatum Labill.   26 IPCN72 GRASHOFF, J.L., M.W. BIERNER, & D.K. NORTHINGTON. 1972. Chromosome numbers in North and Central American Compositae. Brittonia 24: 379-394.
  Helenium quadridentatum Labill. Helenium quadridentatum Labill. 13   IPCN73-74 WATSON, T.J., Jr. 1973. Chromosome numbers in Compositae from the southwestern United states. Southw. Naturalist 18: 117-124.