CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.
CCDB → Angiosperms → Compositae → Helianthus → Helianthus petiolaris var. canescens A. Gray
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Helianthus niveus subsp. canescens (A. Gray) Heiser | Helianthus petiolaris var. canescens A. Gray | 17(1) | Asteracea | Chandler et al. 1986 Syst. Bot. | |||
| ! | Helianthus canus (Britton) Wooton & Standl. | Helianthus petiolaris var. canescens A. Gray | 15-17II+0-4I(3) | Asteracea | Heiser 1965 Ann. Missouri Bot. Gard. | ||
| Helianthus petiolaris var. canescens A. Gray | Helianthus petiolaris var. canescens A. Gray | 17(1) | Asteracea | Heiser 1948a Bull. Torrey Bot. Club (= J. Torrey Bot. Soc.) | |||
| ! | Helianthus canus (Britton) Wooton & Standl. | Helianthus petiolaris var. canescens A. Gray | 17(1) | Asteracea | Solbrig et al. 1972 Amer. J. Bot. | ||
| Helianthus niveus subsp. canescens (A. Gray) Heiser | Helianthus petiolaris var. canescens A. Gray | 17 | IPCN online | Chandler, J. M., C. C. Jan & B. H. Beard. 1986. Chromosomal differentiation among the annual Helianthus species. Syst. Bot. 11: 354–371. | |||
| ! | Helianthus canus (Britton) Wooton & Standl. | Helianthus petiolaris var. canescens A. Gray | 17 | IPCN72 | SOLBRIG, O.T., D.W. KYHOS, M. POWELL, & P.H. RAVEN. 1972. Chromosome numbers in Compositae VIII: Heliantheae. Amer. J. Bot. 59: 869-878. | ||
| ! | Helianthus niveus subsp. canescens (A. Gray) Heiser | Helianthus petiolaris var. canescens A. Gray | 34 | C-values database | Sims LE, Price HJ. 1985. Nuclear DNA content variation in Helianthus (Asteraceae). American Journal of Botany 72: 1213-1219. |